Racunarske Mreze I Kolokvijum (I Deo)

1. Greske koje nastanu tokom prenosa podataka u idealnom slucaju je

Nemoguce je samo otkriti ali ne I ispraviti

Moguce je otkriti I ispraviti

Nemoguce niti otkriti niti ispraviti

The correct answer is "Moguce je otkriti I ispraviti" (It is possible to detect and correct). This means that in ideal conditions, data transmission errors can be both detected and corrected.

Explanation

The correct answer is "Moguce je otkriti I ispraviti" (It is possible to detect and correct). This means that in ideal conditions, data transmission errors can be both detected and corrected.

2. Najmanju racunarsku mrezu u navedenom skupu cini:

Gradska racunarska mreza(MAN)

Regionalna Racunarska mreza(WAN)

Globalna racunarska mreza(Internet)

The smallest computer network in the given set is the Gradska racunarska mreza (MAN). This type of network covers a specific geographical area, such as a city or a campus. It is smaller in scale compared to a Regionalna Racunarska mreza (WAN), which covers a larger region like a country or a continent, and the Globalna racunarska mreza (Internet), which is a worldwide network connecting millions of devices. Therefore, the MAN network is the smallest among the options provided.

Explanation

The smallest computer network in the given set is the Gradska racunarska mreza (MAN). This type of network covers a specific geographical area, such as a city or a campus. It is smaller in scale compared to a Regionalna Racunarska mreza (WAN), which covers a larger region like a country or a continent, and the Globalna racunarska mreza (Internet), which is a worldwide network connecting millions of devices. Therefore, the MAN network is the smallest among the options provided.

3. Naziv Carrier Sense Multiple ACCess with Collision Detection(CSMA/CD) odnosi se na:

Internet

Token ring

Eternet

The correct answer is Ethernet. CSMA/CD is a protocol used in Ethernet networks to avoid collisions when multiple devices attempt to transmit data simultaneously. It allows devices to listen for network traffic before transmitting, and if a collision is detected, the devices involved wait for a random amount of time before retransmitting. Ethernet is a widely used technology for local area networks (LANs), and CSMA/CD helps to ensure efficient and reliable data transmission in Ethernet networks.

Explanation

The correct answer is Ethernet. CSMA/CD is a protocol used in Ethernet networks to avoid collisions when multiple devices attempt to transmit data simultaneously. It allows devices to listen for network traffic before transmitting, and if a collision is detected, the devices involved wait for a random amount of time before retransmitting. Ethernet is a widely used technology for local area networks (LANs), and CSMA/CD helps to ensure efficient and reliable data transmission in Ethernet networks.

4. Neke od osnovnih topologija racunarskih mreza su:

Koaksijalni kabl

Kabl sa optickim vlaknima

Zvezda

Prsten

Kabl sa upredenim paricama

Magistrala

The given answer lists three basic network topologies: Zvezda (Star), Prsten (Ring), and Magistrala (Bus). These are all common types of network configurations. In a star topology, all devices are connected to a central hub or switch. In a ring topology, devices are connected in a circular manner, with each device connected to two neighboring devices. In a bus topology, all devices are connected to a single cable, with data transmitted in both directions. These topologies represent different ways of organizing and connecting devices in a computer network.

Explanation

The given answer lists three basic network topologies: Zvezda (Star), Prsten (Ring), and Magistrala (Bus). These are all common types of network configurations. In a star topology, all devices are connected to a central hub or switch. In a ring topology, devices are connected in a circular manner, with each device connected to two neighboring devices. In a bus topology, all devices are connected to a single cable, with data transmitted in both directions. These topologies represent different ways of organizing and connecting devices in a computer network.

Submit

5. Najvecu racunarsku mrezu u navedenom skupu cini

Globalna racunarska mreza(Internet)

Regionlana racunarska mreza(Wide Area Network, WAN)

Gradska Racunarska mreza(Metropolitan Area Network, MAN)

The correct answer is Globalna racunarska mreza(Internet). This is because the Internet is the largest computer network in the given set. It is a global network that connects millions of computers and networks worldwide, allowing for communication, information sharing, and access to various resources. Regional and metropolitan computer networks, such as WAN and MAN, are smaller in scale and cover specific geographic areas. Therefore, the Internet is the correct answer as it represents the largest computer network in the given options.

Explanation

The correct answer is Globalna racunarska mreza(Internet). This is because the Internet is the largest computer network in the given set. It is a global network that connects millions of computers and networks worldwide, allowing for communication, information sharing, and access to various resources. Regional and metropolitan computer networks, such as WAN and MAN, are smaller in scale and cover specific geographic areas. Therefore, the Internet is the correct answer as it represents the largest computer network in the given options.

6. Oznaka RS-232 odnosi se na:

Paralelni prenos digitalnih podataka

Tip konektora za kabloze sa upredenim paricama

Skup standarda za serijsku digitalnu komunikaciju

The RS-232 designation refers to a set of standards for serial digital communication. This means that it is a collection of rules and specifications that define how data is transmitted and received over a serial connection. It is not related to parallel data transmission or the type of connector used for twisted pair cables. RS-232 is commonly used for connecting computers and peripheral devices, such as modems and printers.

Explanation

The RS-232 designation refers to a set of standards for serial digital communication. This means that it is a collection of rules and specifications that define how data is transmitted and received over a serial connection. It is not related to parallel data transmission or the type of connector used for twisted pair cables. RS-232 is commonly used for connecting computers and peripheral devices, such as modems and printers.

7. Najjednostavniji nacin za otklanjanje otkrivene greske koja se javila tokom ???

Primena kontrolne sume

Polinomijalna redudantna provera

Ponovno slanje paketa

The correct answer is "Ponovno slanje paketa" because it refers to the process of retransmitting data packets that have been lost or corrupted during transmission. This is a common error recovery technique used in network communication to ensure that the data arrives intact at the destination. By retransmitting the packets, the sender can compensate for any errors that occurred during the initial transmission, thereby ensuring the successful delivery of the data.

Explanation

The correct answer is "Ponovno slanje paketa" because it refers to the process of retransmitting data packets that have been lost or corrupted during transmission. This is a common error recovery technique used in network communication to ensure that the data arrives intact at the destination. By retransmitting the packets, the sender can compensate for any errors that occurred during the initial transmission, thereby ensuring the successful delivery of the data.

8. Dvodimenzionalna provera parnosti u odnosu na jednodimenzionalnu proveru parnosti:

Nema uticaja na otkrivanje I ispravljanje gresaka

Nudi manje mogucnosti za otkrivanje I ispravljanje gresaka

Nudi vece mogucnosti za otkrivanje I ispravljanje gresaka

The given answer states that a two-dimensional parity check offers greater possibilities for error detection and correction compared to a one-dimensional parity check. This implies that the two-dimensional method is more effective in identifying and fixing errors.

Explanation

The given answer states that a two-dimensional parity check offers greater possibilities for error detection and correction compared to a one-dimensional parity check. This implies that the two-dimensional method is more effective in identifying and fixing errors.

9. Za standardizaciju javne telefonske mreze zaduzena je organizacija:

PTT

Medjunarodna Telekomunikaciona Unija(ITU)

IEEE

IETF

The correct answer is Medjunarodna Telekomunikaciona Unija(ITU). The ITU is responsible for the standardization of the public telephone network. PTT, IEEE, and IETF are not specifically responsible for the standardization of the public telephone network.

Explanation

The correct answer is Medjunarodna Telekomunikaciona Unija(ITU). The ITU is responsible for the standardization of the public telephone network. PTT, IEEE, and IETF are not specifically responsible for the standardization of the public telephone network.

10. Dvodimenzionalna provera parnosti pored otkrivanja omogucava I ispravljanje gresaka nastalih tokom prenosa podataka

Netacno

Tacno

Zavisi od protokola koji se koristi na visim slojevima

The statement is true. Dvodimenzionalna provera parnosti (two-dimensional parity check) is a technique used to detect and correct errors that occur during data transmission. This method involves adding extra bits to the data to create a parity matrix, which can be used to identify and correct errors in the received data. Therefore, the given statement is correct.

Explanation

The statement is true. Dvodimenzionalna provera parnosti (two-dimensional parity check) is a technique used to detect and correct errors that occur during data transmission. This method involves adding extra bits to the data to create a parity matrix, which can be used to identify and correct errors in the received data. Therefore, the given statement is correct.

11. Kod prenosa podataka sa komutacijom paketa podaci se prenose:

U vise paketskim jedinicama

U zavisnosti od tehnologije na sloju veze podataka

Odjednom

In the context of data transmission with packet switching, the correct answer suggests that data is transmitted in multiple packet units. This means that large amounts of data are divided into smaller packets, each containing a portion of the original data. These packets are then transmitted individually and reassembled at the receiving end to reconstruct the original data. This approach allows for more efficient and reliable data transmission, as it enables better error detection and correction, as well as the ability to prioritize and route packets efficiently. The answer also implies that the transmission of data in multiple packet units is not dependent on the technology used at the data link layer and does not happen all at once.

Explanation

In the context of data transmission with packet switching, the correct answer suggests that data is transmitted in multiple packet units. This means that large amounts of data are divided into smaller packets, each containing a portion of the original data. These packets are then transmitted individually and reassembled at the receiving end to reconstruct the original data. This approach allows for more efficient and reliable data transmission, as it enables better error detection and correction, as well as the ability to prioritize and route packets efficiently. The answer also implies that the transmission of data in multiple packet units is not dependent on the technology used at the data link layer and does not happen all at once.

12. Najpopularnija zicana tehnologija za lokalne racunarske mreze je:

USB

IEEE 802.11

Token-ring

Eternet

The correct answer is Ethernet. Ethernet is the most popular wired technology used for local computer networks. It is a system for connecting multiple devices, such as computers, printers, and servers, within a local area network (LAN). Ethernet uses a set of protocols to transmit data packets between devices over a network cable. It provides a reliable and fast connection, making it widely used in both home and business networks. USB, IEEE 802.11, and Token-ring are also network technologies, but they are not as widely used as Ethernet for local computer networks.

Explanation

The correct answer is Ethernet. Ethernet is the most popular wired technology used for local computer networks. It is a system for connecting multiple devices, such as computers, printers, and servers, within a local area network (LAN). Ethernet uses a set of protocols to transmit data packets between devices over a network cable. It provides a reliable and fast connection, making it widely used in both home and business networks. USB, IEEE 802.11, and Token-ring are also network technologies, but they are not as widely used as Ethernet for local computer networks.

13. Koji od sledecih uzroka greske pri prenosu podataka najcesce podrazumeva nemogucnost dalje komunikacije?

Prekid linije

Impulsni sum

Beli Gausov sum

Prenos podataka sa komutacijom veza

Inkapsulacija

The most common cause of communication failure among the given options is a "Prekid linije" which means a line break or interruption in the transmission line. This can occur due to physical damage to the line or a disconnection, resulting in the inability to continue communication between the sender and receiver.

Explanation

The most common cause of communication failure among the given options is a "Prekid linije" which means a line break or interruption in the transmission line. This can occur due to physical damage to the line or a disconnection, resulting in the inability to continue communication between the sender and receiver.

14. U osnovne tehnike za otkrivanje gresaka nastalih tokom prenosa podataka spadaju:

Polinomijalna provera

Kompresija u cilju iznudjivanja priznanja

Provera parnosti

Longitudinalna redundantna provera

Uporedjivanje primljenih sa poslatim bitovima

The correct answer includes three techniques for error detection during data transmission: polynomial check, parity check, and longitudinal redundant check. Polynomial check involves using a polynomial equation to detect errors in the data. Parity check involves adding an extra bit to the data to ensure that the number of ones is always even or odd. Longitudinal redundant check involves adding additional bits to the data to detect errors in each transmission unit. These techniques help ensure the accuracy and integrity of the transmitted data.

Explanation

The correct answer includes three techniques for error detection during data transmission: polynomial check, parity check, and longitudinal redundant check. Polynomial check involves using a polynomial equation to detect errors in the data. Parity check involves adding an extra bit to the data to ensure that the number of ones is always even or odd. Longitudinal redundant check involves adding additional bits to the data to detect errors in each transmission unit. These techniques help ensure the accuracy and integrity of the transmitted data.

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15. Mrezni most(bridz) podrazumevano poseduje

2 uticnice

Vise od 2 uticnice

1 uticnicu

The correct answer is 2 uticnice. This means that a network bridge by default has two sockets or ports. These sockets allow the bridge to connect multiple devices together and enable communication between them. Having more than two sockets would provide the ability to connect even more devices, while having only one socket would limit the number of devices that can be connected. Therefore, the default configuration of a network bridge includes two sockets.

Explanation

The correct answer is 2 uticnice. This means that a network bridge by default has two sockets or ports. These sockets allow the bridge to connect multiple devices together and enable communication between them. Having more than two sockets would provide the ability to connect even more devices, while having only one socket would limit the number of devices that can be connected. Therefore, the default configuration of a network bridge includes two sockets.

16. Termin "asimetricno " u nazivu ADSL tehnologiji oznacava:

Razilicite brzine slanja I primanja podataka

Izmestaj linije simetrije u paricama telefonskih kablova

Poseban nacin za otkrivanje gresaka tokom prenosa

The term "asimetricno" in the name ADSL technology refers to different speeds for sending and receiving data.

Explanation

The term "asimetricno" in the name ADSL technology refers to different speeds for sending and receiving data.

17. Naziv Ccarrier Sense Mutiple Access with Collision Detection(CSMA/CD) odnosi se na:

Internet

Eternet

Token-ring

The correct answer is Ethernet. CSMA/CD is a protocol used in Ethernet networks to avoid collisions between data packets. It allows multiple devices to share the same network medium by sensing if the medium is busy before transmitting data. If a collision is detected, the devices involved in the collision wait for a random period of time before retransmitting their data. Therefore, CSMA/CD is specifically related to Ethernet networks.

Explanation

The correct answer is Ethernet. CSMA/CD is a protocol used in Ethernet networks to avoid collisions between data packets. It allows multiple devices to share the same network medium by sensing if the medium is busy before transmitting data. If a collision is detected, the devices involved in the collision wait for a random period of time before retransmitting their data. Therefore, CSMA/CD is specifically related to Ethernet networks.

18. Najvecu Racunarsku mrezu u navedenom skupu cini

Licna racunarska mreza(Personal Area Network, PAN)

Gradska Racunarska mreza(Metropolitan Area Network. MAN)

Lokalna racunarska mreza(Local Area Network, LAN)

The correct answer is Gradska Racunarska mreza (Metropolitan Area Network, MAN). A Metropolitan Area Network is a computer network that spans a city or a large campus. It covers a larger geographical area than a Local Area Network (LAN) but smaller than a Wide Area Network (WAN). A Personal Area Network (PAN) is the smallest type of network, typically connecting devices within a person's workspace. Therefore, the largest computer network in the given set is the Metropolitan Area Network.

Explanation

The correct answer is Gradska Racunarska mreza (Metropolitan Area Network, MAN). A Metropolitan Area Network is a computer network that spans a city or a large campus. It covers a larger geographical area than a Local Area Network (LAN) but smaller than a Wide Area Network (WAN). A Personal Area Network (PAN) is the smallest type of network, typically connecting devices within a person's workspace. Therefore, the largest computer network in the given set is the Metropolitan Area Network.

19. Tehnika poznata pod nazivom CSMA/CD (Carrier Sense multiple access with collision detection) predstavlja realizaciju

Pristupa na osnovu sadrzaja

Multipleksovanja kanala

Kontrolisanog pristupa

The correct answer is "Pristupa na osnovu sadrzaja." CSMA/CD (Carrier Sense multiple access with collision detection) is a technique used in Ethernet networks to control access to the shared communication medium. It allows multiple devices to access the medium based on the content of the data being transmitted. Before transmitting, each device listens to check if the medium is busy. If it is, the device waits for a random amount of time before attempting to transmit again to avoid collisions. This method ensures fair access to the medium and helps prevent data collisions.

Explanation

The correct answer is "Pristupa na osnovu sadrzaja." CSMA/CD (Carrier Sense multiple access with collision detection) is a technique used in Ethernet networks to control access to the shared communication medium. It allows multiple devices to access the medium based on the content of the data being transmitted. Before transmitting, each device listens to check if the medium is busy. If it is, the device waits for a random amount of time before attempting to transmit again to avoid collisions. This method ensures fair access to the medium and helps prevent data collisions.

20. U mrezne uredjaje koji analiziraju odredisnu adresu pre prosledjivanja okvira spadaju

Pojacivac signala(ripiter)

Mrezni most(bridz)

Razvodnik signala(hab)

Mrezni komutator(svic)

The correct answer is "Mrezni most (bridz)" and "Mrezni komutator (svic)". Both of these network devices analyze the destination address before forwarding the frames. A network bridge (bridz) operates at the data link layer (Layer 2) and examines the MAC address of incoming frames to determine whether to forward them to another network segment. A network switch (svic) also operates at Layer 2 and uses the destination MAC address to forward frames to the appropriate port or device within a local network.

Explanation

The correct answer is "Mrezni most (bridz)" and "Mrezni komutator (svic)". Both of these network devices analyze the destination address before forwarding the frames. A network bridge (bridz) operates at the data link layer (Layer 2) and examines the MAC address of incoming frames to determine whether to forward them to another network segment. A network switch (svic) also operates at Layer 2 and uses the destination MAC address to forward frames to the appropriate port or device within a local network.

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21. Logicka topologija prve verzije Eterneta je:

Magistrala

Prsten

Zvezda

The correct answer is "Magistrala". In the first version of Ethernet, the logical topology used was a bus or linear bus topology, also known as "Magistrala". In this topology, all devices are connected to a single cable, forming a linear structure. Data is transmitted in both directions on the cable, and each device on the network listens for data intended for it. This topology allows for easy addition or removal of devices, but a single break in the cable can disrupt the entire network.

Explanation

The correct answer is "Magistrala". In the first version of Ethernet, the logical topology used was a bus or linear bus topology, also known as "Magistrala". In this topology, all devices are connected to a single cable, forming a linear structure. Data is transmitted in both directions on the cable, and each device on the network listens for data intended for it. This topology allows for easy addition or removal of devices, but a single break in the cable can disrupt the entire network.

22. Racunarske mreze resavaju

Tehnicke probleme vezane za komunikaciju

Organizacione probleme vezane za komunikaciju

Sustinske probleme vezane za komunikaciju

Jezicke probleme vezane za komunikaciju

Racunarske mreze resavaju tehnicke probleme vezane za komunikaciju. This means that computer networks are designed to address technical issues related to communication. This could include problems such as network congestion, data transmission errors, or hardware failures that can hinder effective communication between devices connected to the network. By resolving these technical problems, computer networks ensure smooth and reliable communication among devices and users.

Explanation

Racunarske mreze resavaju tehnicke probleme vezane za komunikaciju. This means that computer networks are designed to address technical issues related to communication. This could include problems such as network congestion, data transmission errors, or hardware failures that can hinder effective communication between devices connected to the network. By resolving these technical problems, computer networks ensure smooth and reliable communication among devices and users.

23. OSI referentni model definise

6 slojeva

7 slojeva

5 slojeva

The correct answer is 7 slojeva. The OSI referentni model defines a network architecture that consists of seven layers. Each layer has a specific function and interacts with the layers above and below it. These layers include the physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer. This model provides a framework for understanding and designing computer networks, ensuring interoperability between different systems and protocols.

Explanation

The correct answer is 7 slojeva. The OSI referentni model defines a network architecture that consists of seven layers. Each layer has a specific function and interacts with the layers above and below it. These layers include the physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer. This model provides a framework for understanding and designing computer networks, ensuring interoperability between different systems and protocols.

24. U slucaju da se zahteva pouzdani prenos podataka neophodno je koristiti

Protokol sa uspostavljanjem veze

Ptorokole bez uspostavljanja veze

Bilo koji tip protokola sa aspekta uspostavljanja veze

Protokol korisnickih datagrama (UDP)

In order to ensure reliable data transmission, it is necessary to use a protocol that establishes a connection between the sender and receiver. This type of protocol ensures that data is successfully transmitted and received without any errors or loss. Protocols without connection establishment may not provide the necessary mechanisms for error detection and correction, leading to unreliable data transmission. UDP, on the other hand, is a protocol that does not establish a connection and therefore may not guarantee reliable data transmission.

Explanation

In order to ensure reliable data transmission, it is necessary to use a protocol that establishes a connection between the sender and receiver. This type of protocol ensures that data is successfully transmitted and received without any errors or loss. Protocols without connection establishment may not provide the necessary mechanisms for error detection and correction, leading to unreliable data transmission. UDP, on the other hand, is a protocol that does not establish a connection and therefore may not guarantee reliable data transmission.

25. Tacka u kojoj su svi kablovi strukturno kablirane mreze koncentrisu naziva se:

Glavno cvoriste

Radni prostor

Telekomunikacioni ormar

The correct answer is "Glavno cvoriste" (Main distribution frame). This is the point where all the cables of a structured cabling network converge. It serves as the central hub for connecting various devices and equipment in a network.

Explanation

The correct answer is "Glavno cvoriste" (Main distribution frame). This is the point where all the cables of a structured cabling network converge. It serves as the central hub for connecting various devices and equipment in a network.

26. Odbijanje signala I njegov povracaj do izvora(kao uzrok gresaka pri prenosu podataka) naziva se

Dziter

Harmonijsko izoblicenje

Eho

Poduzno slabljenje

Eho refers to the reflection of a signal back to its source, causing errors in data transmission. This can occur when a signal encounters an obstacle or interference and bounces back to the sender. The reflected signal can interfere with the original signal, leading to errors in data transmission.

Explanation

Eho refers to the reflection of a signal back to its source, causing errors in data transmission. This can occur when a signal encounters an obstacle or interference and bounces back to the sender. The reflected signal can interfere with the original signal, leading to errors in data transmission.

27. U skladu sa tipom medijuma koji koriste za prenos podataka racunarske mreze se dele na:

Privremeno racunarske mreze

Bezicne racunarske mreze

Mreze sa topologijom magistrale

Mreze sa topologijom zvezde

Zicne (kablirane ) racunarske mreze

Fiksne racunarske mreze

The correct answer includes "Bezicne racunarske mreze" and "Zicne (kablirane ) racunarske mreze." This suggests that computer networks are divided based on the type of media used for data transmission. "Bezicne racunarske mreze" refers to wireless computer networks, which use wireless communication technologies like Wi-Fi or Bluetooth to transmit data. "Zicne (kablirane ) racunarske mreze" refers to wired computer networks, which use physical cables like Ethernet cables to transmit data. Therefore, the correct answer lists the two types of computer networks based on the media used for data transmission.

Explanation

The correct answer includes "Bezicne racunarske mreze" and "Zicne (kablirane ) racunarske mreze." This suggests that computer networks are divided based on the type of media used for data transmission. "Bezicne racunarske mreze" refers to wireless computer networks, which use wireless communication technologies like Wi-Fi or Bluetooth to transmit data. "Zicne (kablirane ) racunarske mreze" refers to wired computer networks, which use physical cables like Ethernet cables to transmit data. Therefore, the correct answer lists the two types of computer networks based on the media used for data transmission.

Submit

28. Najnizi nivo zastite od EM zracenja pruzaju

STP kablovi

UTP kablovi

SFTP kablovi

FTP kablovi

UTP kablovi provide the lowest level of protection against EM radiation. EM radiation refers to electromagnetic radiation, which includes various forms of energy such as radio waves, microwaves, and X-rays. UTP stands for Unshielded Twisted Pair, and it is a type of cable commonly used for Ethernet connections. Unlike STP (Shielded Twisted Pair), SFTP (Shielded and Foiled Twisted Pair), and FTP (Foiled Twisted Pair) cables, UTP cables do not have any additional shielding to protect against EM radiation. Therefore, UTP cables offer the least amount of protection against EM radiation compared to the other options given.

Explanation

UTP kablovi provide the lowest level of protection against EM radiation. EM radiation refers to electromagnetic radiation, which includes various forms of energy such as radio waves, microwaves, and X-rays. UTP stands for Unshielded Twisted Pair, and it is a type of cable commonly used for Ethernet connections. Unlike STP (Shielded Twisted Pair), SFTP (Shielded and Foiled Twisted Pair), and FTP (Foiled Twisted Pair) cables, UTP cables do not have any additional shielding to protect against EM radiation. Therefore, UTP cables offer the least amount of protection against EM radiation compared to the other options given.

29. U sistemu strukturnog kabliranja definisano je da telekomunikaciona soba treba da se nalazi na istom spratu kao I :

radni prostor

komunikacioni uredjaj najviseg nivoa u mrezi

demarkciona tacka

najveci broj korisnika

According to the given information, in a structured cabling system, it is defined that the telecommunication room should be located on the same floor as the "radni prostor" (work space). This means that the telecommunication room should be in close proximity to the work area for efficient connectivity and communication purposes.

Explanation

According to the given information, in a structured cabling system, it is defined that the telecommunication room should be located on the same floor as the "radni prostor" (work space). This means that the telecommunication room should be in close proximity to the work area for efficient connectivity and communication purposes.

30. Moduli operativnog sistema koji obezbedjuju podrsku za odredjeni mrezni hardver nazivaju

Mrezni interfejsi

Aplikacije

Drajveri

Komunikacioni slojevi

Mrezne kartice

Drajveri su moduli operativnog sistema koji obezbeđuju podršku za određeni mrežni hardver. Oni omogućavaju komunikaciju između operativnog sistema i mrežne kartice, što omogućava da se korisnik poveže sa mrežom i razmenjuje podatke. Drajveri su odgovorni za upravljanje funkcionalnostima mrežne kartice i omogućavaju operativnom sistemu da koristi tu karticu na pravilan način.

Explanation

Drajveri su moduli operativnog sistema koji obezbeđuju podršku za određeni mrežni hardver. Oni omogućavaju komunikaciju između operativnog sistema i mrežne kartice, što omogućava da se korisnik poveže sa mrežom i razmenjuje podatke. Drajveri su odgovorni za upravljanje funkcionalnostima mrežne kartice i omogućavaju operativnom sistemu da koristi tu karticu na pravilan način.

31. Tokom prenosa 10 paketa podataka pojedinacna velicina od po 100 bitova na prijemnoj strani je utvrdjena greskoa u vidu 8 izmenjenih bitova(u 8 razlicitih paketa je utvrdjena greska na po jednom bitu). U pitanju je sledeci nivo greske:

1/8

8/10

8/1.000

1/10

8/100

The correct answer is 8/1.000. This means that out of a total of 1,000 bits transmitted, 8 bits were found to be in error. This indicates a relatively high level of error, as 8 out of 1,000 bits is a higher error rate compared to the other options provided.

Explanation

The correct answer is 8/1.000. This means that out of a total of 1,000 bits transmitted, 8 bits were found to be in error. This indicates a relatively high level of error, as 8 out of 1,000 bits is a higher error rate compared to the other options provided.

32. Kod prenosa podataka sa komutacijom paketa svi paketi putuju istom putanjom

Komutacija paketa na to nema uticaja

Netacno

Tacno

This statement is incorrect. In packet switching, packets are not required to travel along the same path. Instead, they are individually routed based on the network conditions and available resources. This allows for more efficient use of network resources and enables packets to take different paths to reach their destination. Therefore, the statement that all packets travel along the same path in packet switching is false.

Explanation

This statement is incorrect. In packet switching, packets are not required to travel along the same path. Instead, they are individually routed based on the network conditions and available resources. This allows for more efficient use of network resources and enables packets to take different paths to reach their destination. Therefore, the statement that all packets travel along the same path in packet switching is false.

33. Najveca razdaljina u bezicnom prenosu podataka moze se ostvariti koriscenjem sledecih tehnologije:

Eternet

Bluetooth

WiMAX

IEEE 802.11

WiMAX (Worldwide Interoperability for Microwave Access) is a wireless communication technology that can provide long-range transmission of data. It operates on a wider range of frequencies and can cover larger areas compared to other wireless technologies like Bluetooth and IEEE 802.11 (which includes Wi-Fi). WiMAX can transmit data over several kilometers, making it suitable for providing internet access in rural or remote areas where wired connections are not available. Therefore, WiMAX is the correct answer for achieving the longest distance in wireless data transmission.

Explanation

WiMAX (Worldwide Interoperability for Microwave Access) is a wireless communication technology that can provide long-range transmission of data. It operates on a wider range of frequencies and can cover larger areas compared to other wireless technologies like Bluetooth and IEEE 802.11 (which includes Wi-Fi). WiMAX can transmit data over several kilometers, making it suitable for providing internet access in rural or remote areas where wired connections are not available. Therefore, WiMAX is the correct answer for achieving the longest distance in wireless data transmission.

34. Najpopularnija zicna tehnologija za lokalne racunarske mreze je:

IEEE 802.11

USB

Eternet

Token-ring

Ethernet is the most popular wired technology for local computer networks. It is widely used due to its reliability, high speed, and compatibility with various devices. Ethernet allows for the transmission of data packets over a network using a set of rules and protocols. It provides a stable and secure connection, making it suitable for both small and large-scale networks. Ethernet has evolved over time, with different variations such as Ethernet over twisted pair cables (10BASE-T, 100BASE-TX, etc.) and fiber optic cables (1000BASE-SX, 10GBASE-SR, etc.) being introduced to meet the increasing demands of network connectivity.

Explanation

Ethernet is the most popular wired technology for local computer networks. It is widely used due to its reliability, high speed, and compatibility with various devices. Ethernet allows for the transmission of data packets over a network using a set of rules and protocols. It provides a stable and secure connection, making it suitable for both small and large-scale networks. Ethernet has evolved over time, with different variations such as Ethernet over twisted pair cables (10BASE-T, 100BASE-TX, etc.) and fiber optic cables (1000BASE-SX, 10GBASE-SR, etc.) being introduced to meet the increasing demands of network connectivity.

35. Najjednostavniji nacin za otklanjanje otkrivene greske koja se javila tokom

Polinomijalna redundantna provera

Ponovno slanje paketa

Primena kontrolne sume

The given answer, "Ponovno slanje paketa" (which translates to "Resending packets"), suggests that the simplest way to address the discovered error is to resend the packets. This means that if an error is detected during the transmission of packets, the sender can simply resend the packets to ensure that they are received correctly. Resending packets is a common error correction technique used in data communication systems to ensure reliable delivery of data.

Explanation

The given answer, "Ponovno slanje paketa" (which translates to "Resending packets"), suggests that the simplest way to address the discovered error is to resend the packets. This means that if an error is detected during the transmission of packets, the sender can simply resend the packets to ensure that they are received correctly. Resending packets is a common error correction technique used in data communication systems to ensure reliable delivery of data.

36. Naziv "Debeli Eternet " (engl. Ethernet) odnosi se na koriscenje

Kablova sa upredenim paricama

Kablova sa optickim vlaknima

Koaksijalnih kablova

The correct answer is "Koaksijalnih kablova" because the term "Debeli Ethernet" refers to the use of coaxial cables.

Explanation

The correct answer is "Koaksijalnih kablova" because the term "Debeli Ethernet" refers to the use of coaxial cables.

37. Vreme koje je potrebno da bitovi stignu od predajnika do prijemnika kroz komunikacioni medijum naziva se:

Vreme kontrole pristupa mediju

Vreme propagacije

Vreme prenosa

The correct answer is "Vreme propagacije." This refers to the time it takes for the bits to travel from the transmitter to the receiver through the communication medium. It is a measure of the delay or latency in the transmission process.

Explanation

The correct answer is "Vreme propagacije." This refers to the time it takes for the bits to travel from the transmitter to the receiver through the communication medium. It is a measure of the delay or latency in the transmission process.

38. Kod podataka u kome postoji paran broj bitova cija je vrednost 1 a kome je dodat kontrolni bit cija je vrednost 0 korisceni metod se naziva:

Longitudinalna relundantna provera

Neparna parnost

Parna parnost

Polinomijalna provera

The correct answer is "Parna parnost" because it refers to a method of error checking in which a control bit with a value of 0 is added to a data code with an even number of 1 bits. This control bit helps to detect errors in the transmission or storage of the data by ensuring that the total number of 1 bits (including the control bit) is always even. If the count of 1 bits is found to be odd, it indicates an error in the data.

Explanation

The correct answer is "Parna parnost" because it refers to a method of error checking in which a control bit with a value of 0 is added to a data code with an even number of 1 bits. This control bit helps to detect errors in the transmission or storage of the data by ensuring that the total number of 1 bits (including the control bit) is always even. If the count of 1 bits is found to be odd, it indicates an error in the data.

39. Tehnologija koja ne omogucava emisiono slanje(engl. broadcast) je:

IEEE 802.11

Eternet

Frejm-relej

The correct answer is Frejm-relej. Frame relay is a technology that does not support broadcast transmission. Unlike Ethernet and IEEE 802.11, which both allow for broadcast communication, frame relay is a packet-switching technology that operates on a virtual circuit basis. It does not have the capability to send a message to all devices on the network simultaneously. Therefore, frame relay does not support broadcast transmission.

Explanation

The correct answer is Frejm-relej. Frame relay is a technology that does not support broadcast transmission. Unlike Ethernet and IEEE 802.11, which both allow for broadcast communication, frame relay is a packet-switching technology that operates on a virtual circuit basis. It does not have the capability to send a message to all devices on the network simultaneously. Therefore, frame relay does not support broadcast transmission.

40. Osnove racunarskih telekomunikacija I mreza predstavlja prenos:

Signala

Komunikacionih slojeva

Podataka

Protokola

Informacija

The correct answer is "Komunikacionih slojeva" (Communication layers). This answer is correct because the question asks about the subject matter of the course "Osnove racunarskih telekomunikacija I mreza" (Basics of computer telecommunications and networks), and the subject matter of the course is the communication layers.

Explanation

The correct answer is "Komunikacionih slojeva" (Communication layers). This answer is correct because the question asks about the subject matter of the course "Osnove racunarskih telekomunikacija I mreza" (Basics of computer telecommunications and networks), and the subject matter of the course is the communication layers.

41. Promena jednog bita podataka imace na vrednost kontrolne sume koje se na te podatke odnose:

Maksimalan uticaj

Nece imati uticaj

Zavisi od velicine podataka

Minimalan uticaj

Changing one bit of data will have the maximum impact on the value of the checksum that relates to that data.

Explanation

Changing one bit of data will have the maximum impact on the value of the checksum that relates to that data.

42. IEEE 802.11n standard nudi trenutno najvecu brzinu bezicnog prenosa podataka koja iznosi:

150Mb/s

1Mb/s

10Mb/s

1Gb/s

The correct answer is 150Mb/s. The IEEE 802.11n standard currently provides the highest wireless data transmission speed of 150Mb/s. This standard is an improvement over previous versions, offering faster and more reliable connections for wireless networks. It utilizes multiple antennas and advanced modulation techniques to achieve higher data rates, making it suitable for applications that require high bandwidth, such as video streaming or online gaming.

Explanation

The correct answer is 150Mb/s. The IEEE 802.11n standard currently provides the highest wireless data transmission speed of 150Mb/s. This standard is an improvement over previous versions, offering faster and more reliable connections for wireless networks. It utilizes multiple antennas and advanced modulation techniques to achieve higher data rates, making it suitable for applications that require high bandwidth, such as video streaming or online gaming.

43. U sistemu strukturnog kabliranja definisano je da za prenos govora I podataka treba koristiti sledece ili vise kategorija vise kategorije kablova

Govor – kategorija 5e, podaci – kategorija 5e

Govor – kategorija 3, podaci – kategorija 3

Govor – kategorija 3, podaci kategorija 5e

Govor – kategorija 5e, podaci kategorija 3

The correct answer is "Govor – kategorija 3, podaci kategorija 5e". This is because for the transmission of voice, category 3 cables are sufficient, while for data transmission, category 5e cables are required. Therefore, using category 3 cables for voice and category 5e cables for data would meet the requirements for both types of transmission.

Explanation

The correct answer is "Govor – kategorija 3, podaci kategorija 5e". This is because for the transmission of voice, category 3 cables are sufficient, while for data transmission, category 5e cables are required. Therefore, using category 3 cables for voice and category 5e cables for data would meet the requirements for both types of transmission.

44. Uredjaji koji ne poseduju prihvatnu memoriju za okvire su:

Pojacivac signala(ripiter)

Mrezni most(bridz)

Mrezni komutator(svic)

Razvodnik signala (hab)

The correct answer is "Pojacivac signala(ripiter),Razvodnik signala (hab)". Both the signal amplifier (repeater) and signal distributor (hub) do not possess frame buffering capabilities. This means that they do not store or process incoming frames before forwarding them to the next device. In contrast, network bridges and switches have the ability to store and forward frames, making them capable of managing network traffic more efficiently.

Explanation

The correct answer is "Pojacivac signala(ripiter),Razvodnik signala (hab)". Both the signal amplifier (repeater) and signal distributor (hub) do not possess frame buffering capabilities. This means that they do not store or process incoming frames before forwarding them to the next device. In contrast, network bridges and switches have the ability to store and forward frames, making them capable of managing network traffic more efficiently.

Submit

45. Ruteri odluke o usmeravanju paketa donose na osnovu:

Fizickih adresa(adresa u okviru)

Logickih adresa(adresa u datagramu)

Portova (adresa na transportnom sloju)

Ruteri donose odluke o usmeravanju paketa na osnovu logičkih adresa koje se nalaze unutar datagrama. Logičke adrese se koriste na mrežnom sloju i omogućavaju identifikaciju odredišta paketa. Ruteri analiziraju ove logičke adrese kako bi odredili putanju kojom će paket biti prosleđen do odredišta. Fizičke adrese se odnose na adrese na sloju veze podataka, dok se portovi odnose na adrese na transportnom sloju. Međutim, u ovom slučaju, odluke o usmeravanju se baziraju na logičkim adresama.

Explanation

Ruteri donose odluke o usmeravanju paketa na osnovu logičkih adresa koje se nalaze unutar datagrama. Logičke adrese se koriste na mrežnom sloju i omogućavaju identifikaciju odredišta paketa. Ruteri analiziraju ove logičke adrese kako bi odredili putanju kojom će paket biti prosleđen do odredišta. Fizičke adrese se odnose na adrese na sloju veze podataka, dok se portovi odnose na adrese na transportnom sloju. Međutim, u ovom slučaju, odluke o usmeravanju se baziraju na logičkim adresama.

46. Upravljanje tokom prenosa poznato pod nazivom "stani I cekaj"(engl. Stop-and-wait flow control) svoju funkciju obavlja putem

Potvrde prijema za svaki poslati okvir

Odbijanje slanja u slucaju da se pojavi preveliki broj zahteva od prijemnika

Cekanje na poziv za inicijalno slanje podataka

The correct answer is "Potvrde prijema za svaki poslati okvir" because in "stani i cekaj" or "stop-and-wait" flow control, the sender waits for an acknowledgement (potvrda prijema) from the receiver for each frame sent. This ensures that the receiver has successfully received the frame before the sender can send the next frame.

Explanation

The correct answer is "Potvrde prijema za svaki poslati okvir" because in "stani i cekaj" or "stop-and-wait" flow control, the sender waits for an acknowledgement (potvrda prijema) from the receiver for each frame sent. This ensures that the receiver has successfully received the frame before the sender can send the next frame.

47. U sistemu strukturnog kabliranja preporucena topologija za okosnicu mreze je

Hijerarhijska zvezda

Prsten

Magistrala

Zvezda

The recommended topology for the backbone network in a structured cabling system is the hierarchical star. This topology is characterized by a central main distribution point (MDP) that connects to multiple intermediate distribution points (IDPs), which in turn connect to the end devices. This hierarchical structure allows for better organization, scalability, and manageability of the network. It also provides redundancy and fault tolerance as each IDP can be connected to multiple MDPs, ensuring that if one MDP fails, the network can still function.

Explanation

The recommended topology for the backbone network in a structured cabling system is the hierarchical star. This topology is characterized by a central main distribution point (MDP) that connects to multiple intermediate distribution points (IDPs), which in turn connect to the end devices. This hierarchical structure allows for better organization, scalability, and manageability of the network. It also provides redundancy and fault tolerance as each IDP can be connected to multiple MDPs, ensuring that if one MDP fails, the network can still function.

48. U osnovne tehnike za otkrivanje gresaka nastalih tokom prenosa podataka spadaju:

Provera parnosti

Polinomijalna provera

Kompresija u cilju iznudjivanja priznanja

Longitudinalna redundantna provera

Uporedjivanje primljenih sa poslatim bitovima

The correct answer includes three techniques for error detection during data transmission: parity checking, polynomial checking, and longitudinal redundant checking. Parity checking involves adding an extra bit to a group of bits to ensure that the total number of 1s is either even or odd. Polynomial checking uses mathematical algorithms to generate a checksum that can be used to verify the integrity of the data. Longitudinal redundant checking involves adding redundant bits to the data stream to detect errors. These techniques help ensure the accuracy and reliability of transmitted data.

Explanation

The correct answer includes three techniques for error detection during data transmission: parity checking, polynomial checking, and longitudinal redundant checking. Parity checking involves adding an extra bit to a group of bits to ensure that the total number of 1s is either even or odd. Polynomial checking uses mathematical algorithms to generate a checksum that can be used to verify the integrity of the data. Longitudinal redundant checking involves adding redundant bits to the data stream to detect errors. These techniques help ensure the accuracy and reliability of transmitted data.

Submit

49. Kod prenosa podataka sa komutacijom paketa, paketi na odredistu stizu:

Uvek u obrnutom redosledu u odnosu na slanje

Uvek u istom redosledu u kom su poslati

Redosled stizanja paketa nije predvidiv

In packet-switched data transmission, the order in which packets arrive at the destination is not predictable. This is because packets are sent individually and can take different routes through the network. As a result, they may encounter different levels of congestion or delays along the way, causing them to arrive at the destination in a different order than they were sent. Therefore, it is not guaranteed that the packets will arrive in the same order as they were sent.

Explanation

In packet-switched data transmission, the order in which packets arrive at the destination is not predictable. This is because packets are sent individually and can take different routes through the network. As a result, they may encounter different levels of congestion or delays along the way, causing them to arrive at the destination in a different order than they were sent. Therefore, it is not guaranteed that the packets will arrive in the same order as they were sent.

50. U sistemu strukturnog kabliranja definisano je da kabl koji povezuje radnu stanicu sa uticnicom, kao I kabl koji povezuje razvodni panel sa mreznim uredjajima(patch kabl), ne bi trebalo da bude duzi od:

100 metara

90 metara

50 metara

5 metara

The correct answer is 5 meters. In a structured cabling system, the maximum length for the cable connecting a workstation to the outlet and the cable connecting the patch panel to the network devices should not exceed 5 meters. This limitation is in place to ensure optimal performance and minimize signal loss in the network.

Explanation

The correct answer is 5 meters. In a structured cabling system, the maximum length for the cable connecting a workstation to the outlet and the cable connecting the patch panel to the network devices should not exceed 5 meters. This limitation is in place to ensure optimal performance and minimize signal loss in the network.

51. Ruter Funkcionise na:

Mreznom sloju

Sloju aplikacije

Sloju veze

Fizickom sloju

Transportnom sloju

Ruter funkcionise na mreznom sloju. Mrezni sloj je odgovoran za uspostavljanje i odrzavanje veze izmedju razlicitih mreza. Ruteri koriste mrezne adrese da bi usmeravali podatke izmedju razlicitih mreza, tako da mogu da komuniciraju i razmenjuju informacije. Ruteri takodje mogu da koriste razlicite algoritme za usmeravanje kako bi odabrali najbolji put za slanje podataka.

Explanation

Ruter funkcionise na mreznom sloju. Mrezni sloj je odgovoran za uspostavljanje i odrzavanje veze izmedju razlicitih mreza. Ruteri koriste mrezne adrese da bi usmeravali podatke izmedju razlicitih mreza, tako da mogu da komuniciraju i razmenjuju informacije. Ruteri takodje mogu da koriste razlicite algoritme za usmeravanje kako bi odabrali najbolji put za slanje podataka.

52. Jednodimenzionalna provera parnosti omogucava pored otkrivanja I ispravljanje gresaka nastalih tokom prenosa podataka:

Smanjivanje kasnjenja

Ispravljanje gresaka

Otkrivanje gresaka

Duplo vece brzine prenosa

Jednodimenzionalna provera parnosti omogućava otkrivanje i ispravljanje grešaka nastalih tokom prenosa podataka, što znači da može detektovati i popraviti greške u podacima.

Explanation

Jednodimenzionalna provera parnosti omogućava otkrivanje i ispravljanje grešaka nastalih tokom prenosa podataka, što znači da može detektovati i popraviti greške u podacima.

Submit

53. Ukoliko se inicijalno uspostavljena veza izmedju predajnika I prijemnika ne menja tokom prenosa, u pitanju je:

Prenos podataka sa komutacijom veza

Prenos podataka sa komutacijom paketa

Prenos podataka sa komutacijom protokola

If the initial established connection between the transmitter and receiver does not change during transmission, it is called Circuit-switched data transmission.

Explanation

If the initial established connection between the transmitter and receiver does not change during transmission, it is called Circuit-switched data transmission.

54. Razvodnik Signala (hab ) funkcionise na

Sloju veze

Fizickom sloju

Mreznom sloju

The correct answer is "Fizickom sloju" which translates to "Physical layer" in English. The physical layer is the first layer of the OSI model and is responsible for transmitting raw data bits over a physical medium. It deals with the physical characteristics of the transmission medium, such as voltage levels, cable types, and connectors. The physical layer ensures that the data is transmitted reliably and accurately from one device to another.

Explanation

The correct answer is "Fizickom sloju" which translates to "Physical layer" in English. The physical layer is the first layer of the OSI model and is responsible for transmitting raw data bits over a physical medium. It deals with the physical characteristics of the transmission medium, such as voltage levels, cable types, and connectors. The physical layer ensures that the data is transmitted reliably and accurately from one device to another.

55. Entitet koji sadrzi sve komponente izmedju racunarske uticnice I radne stanice naziva se

Demarkciona tacka

Telekomunikaciona soba

Radni prostor

Telekomunikacioni ormar

The correct answer is "Radni prostor." In this context, "radni prostor" refers to the physical space that contains all the components between a computer socket and a workstation. It is the area where the computer equipment is set up and used for work purposes.

Explanation

The correct answer is "Radni prostor." In this context, "radni prostor" refers to the physical space that contains all the components between a computer socket and a workstation. It is the area where the computer equipment is set up and used for work purposes.

56. Ciklicna redundantna provera (CRC) predstavlja jedan od tipova utvrdjivanja

Polinomijalne redundantne provere

Dvodimenzionalne provere parnosti

Jednodimenzionalne provere parnosti

The given correct answer states that CRC is a type of polynomial redundant check. This means that CRC uses polynomial division to generate a checksum or hash value for data transmission. The polynomial is chosen based on the specific CRC algorithm being used. The CRC value is then appended to the data and transmitted. Upon receiving the data, the recipient performs the same polynomial division and compares the calculated CRC value with the received CRC value to check for any errors in transmission.

Explanation

The given correct answer states that CRC is a type of polynomial redundant check. This means that CRC uses polynomial division to generate a checksum or hash value for data transmission. The polynomial is chosen based on the specific CRC algorithm being used. The CRC value is then appended to the data and transmitted. Upon receiving the data, the recipient performs the same polynomial division and compares the calculated CRC value with the received CRC value to check for any errors in transmission.

57. Eternet je od strane IEEE grupe standardizovan pod brojem

802.3

80802-2

1394

802.11

The correct answer is 802.3 because it is the standard number assigned by the IEEE group for Ethernet. Ethernet is a widely used networking technology that allows devices to communicate with each other over a local area network (LAN). The other options, 80802-2, 1394, and 802.11, are not the correct standard numbers for Ethernet.

Explanation

The correct answer is 802.3 because it is the standard number assigned by the IEEE group for Ethernet. Ethernet is a widely used networking technology that allows devices to communicate with each other over a local area network (LAN). The other options, 80802-2, 1394, and 802.11, are not the correct standard numbers for Ethernet.

58. U mrezne uredjaje koji ne analiziraju odredisnu adresu pre prosledjivanja okvira spadaju:

Pojacivac signala(ripiter)

Mrezni most(bridz)

Razvodnik signala (hab)

Mrezni komutator(svič)

The correct answer is Pojacivac signala(ripiter), Razvodnik signala (hab). Both a signal amplifier (repeater) and a signal distributor (hub) do not analyze the destination address before forwarding frames. A signal amplifier simply boosts the signal strength and forwards it to all connected devices, while a signal distributor broadcasts the signal to all connected devices without analyzing the destination address.

Explanation

The correct answer is Pojacivac signala(ripiter), Razvodnik signala (hab). Both a signal amplifier (repeater) and a signal distributor (hub) do not analyze the destination address before forwarding frames. A signal amplifier simply boosts the signal strength and forwards it to all connected devices, while a signal distributor broadcasts the signal to all connected devices without analyzing the destination address.

Submit

59. Upadanje u frekvencijski opseg drugog komunikacionog kanala(kao uzrok gresaka pri prenosu podataka ) naziva se:

Beli Gausov sum

Impulsni sum

Harmonijsko izoblicenje

Intermodulacioni sum

Intermodulacioni sum se odnosi na upadanje signala iz jednog komunikacionog kanala u frekvencijski opseg drugog kanala, što može dovesti do grešaka pri prenosu podataka. Ova pojava se javlja kada se signali različitih frekvencija preklapaju ili mešaju, stvarajući nove frekvencije koje mogu ometati ili izobličiti originalne signale.

Explanation

Intermodulacioni sum se odnosi na upadanje signala iz jednog komunikacionog kanala u frekvencijski opseg drugog kanala, što može dovesti do grešaka pri prenosu podataka. Ova pojava se javlja kada se signali različitih frekvencija preklapaju ili mešaju, stvarajući nove frekvencije koje mogu ometati ili izobličiti originalne signale.

60. Prevelika blizina kablova I frekvencijskih opsega(kao uzrok greske pri prenosu podataka) naziva se:

Intermodulacioni sum

Harmonijsko izoblicenje

Impulsni sum

preslusavanje

Preslušavanje refers to the interference or leakage of signals between cables or frequency ranges that are in close proximity to each other. This can cause errors in data transmission.

Explanation

Preslušavanje refers to the interference or leakage of signals between cables or frequency ranges that are in close proximity to each other. This can cause errors in data transmission.

61. Dvodimenzionalna provera parnosti u odnosu na jednodimenzionalnu proveru parnosti nudi

Manju kolicinu kontrolnih bitova

Vece brzine prenosa

Vecu efikasnost

Manju mogucnost za nastanak greske tokom prenosa

The given correct answer suggests that two-dimensional parity check offers greater efficiency compared to one-dimensional parity check. This means that the two-dimensional parity check is more effective and reliable in detecting errors during transmission. It may require a smaller number of check bits and provide higher transmission speeds, resulting in improved efficiency in error detection and correction.

Explanation

The given correct answer suggests that two-dimensional parity check offers greater efficiency compared to one-dimensional parity check. This means that the two-dimensional parity check is more effective and reliable in detecting errors during transmission. It may require a smaller number of check bits and provide higher transmission speeds, resulting in improved efficiency in error detection and correction.

62. Pojacivac signala (ripiter )funkcionise na:

Fizickom sloju

Sloju veze

Mreznom sloju

The correct answer is "Fizickom sloju" which translates to "Physical layer" in English. The physical layer is responsible for the transmission and reception of raw data between devices. It deals with the physical characteristics of the communication medium such as electrical voltage, signal strength, and physical connectors. A signal amplifier or repeater operates at the physical layer as it amplifies weak signals to ensure they can travel longer distances without losing their integrity.

Explanation

The correct answer is "Fizickom sloju" which translates to "Physical layer" in English. The physical layer is responsible for the transmission and reception of raw data between devices. It deals with the physical characteristics of the communication medium such as electrical voltage, signal strength, and physical connectors. A signal amplifier or repeater operates at the physical layer as it amplifies weak signals to ensure they can travel longer distances without losing their integrity.

63. Najjednostavniji uredjaj za povecavanje najvece moguce duzine kabla jeste

Mrezni most(bridz)

Ruter

Razvodnik signala(hab)

Pojacavac signala(ripiter)

Mrezni komutator(svic)

The correct answer is "Pojacavac signala(ripiter)". A pojacavac signala, or repeater, is a device used to amplify or regenerate signals in a network. In the context of increasing the maximum possible length of a cable, a repeater can be used to boost the signal strength and overcome any signal degradation or loss that occurs over long distances. This allows for the extension of the maximum length of the cable without compromising the quality or integrity of the signal.

Explanation

The correct answer is "Pojacavac signala(ripiter)". A pojacavac signala, or repeater, is a device used to amplify or regenerate signals in a network. In the context of increasing the maximum possible length of a cable, a repeater can be used to boost the signal strength and overcome any signal degradation or loss that occurs over long distances. This allows for the extension of the maximum length of the cable without compromising the quality or integrity of the signal.

64. Mrezni most (bridz) dozvoljava prolazak okvira u cijem je zaglavlju kao odredisna adresa navedena adresa ciji su svi bitovi jedinice (emisiona adresa, engl.broadcast)

Zavisi od ptorokola na mreznom nivou

Netacno

Tacno

This statement is true. A network bridge allows the passage of frames with a destination address that has all its bits set to one, which is known as a broadcast address. This means that the bridge will forward the frame to all devices on the network. The correctness of this statement depends on the network protocol being used. Different protocols may have different rules for handling broadcast addresses.

Explanation

This statement is true. A network bridge allows the passage of frames with a destination address that has all its bits set to one, which is known as a broadcast address. This means that the bridge will forward the frame to all devices on the network. The correctness of this statement depends on the network protocol being used. Different protocols may have different rules for handling broadcast addresses.

65. Osnovna mana upravljanja tokom prenosa pod nazivom stani I cekaj je:

Visoka cena opreme

Mogucnost “zatrpavanja prijemnika

Niska efikasnost

The given answer suggests that the main drawback of the stop and wait method of data transmission is its low efficiency. This means that the stop and wait method is not very effective in utilizing the available resources and can result in slower transmission speeds. This inefficiency can be attributed to the fact that the sender has to wait for an acknowledgment from the receiver before sending the next packet, leading to potential delays and reduced overall throughput.

Explanation

The given answer suggests that the main drawback of the stop and wait method of data transmission is its low efficiency. This means that the stop and wait method is not very effective in utilizing the available resources and can result in slower transmission speeds. This inefficiency can be attributed to the fact that the sender has to wait for an acknowledgment from the receiver before sending the next packet, leading to potential delays and reduced overall throughput.

66. Sistem horizontalnog kabliranja treba da ima topologiju :

Zvezde

Magistrale

Prstena

The correct answer is "Zvezde" (Stars). In a horizontal cabling system, the star topology is preferred. This topology connects all network devices to a central point, typically a network switch. Each device has its own dedicated connection to the central point, which allows for easy troubleshooting and scalability. Additionally, if one device fails, it does not affect the rest of the network. This makes the star topology reliable and flexible for horizontal cabling systems.

Explanation

The correct answer is "Zvezde" (Stars). In a horizontal cabling system, the star topology is preferred. This topology connects all network devices to a central point, typically a network switch. Each device has its own dedicated connection to the central point, which allows for easy troubleshooting and scalability. Additionally, if one device fails, it does not affect the rest of the network. This makes the star topology reliable and flexible for horizontal cabling systems.

67. U bezicne mreze srednjeg dometa spadaju

WiMAX

Bluetooth

Mobilna telefonija

Satelitske mreze

IEEE 802.11

IEEE 802.11 is the correct answer because it refers to the standard for wireless local area networks (WLANs), commonly known as Wi-Fi. It is widely used for wireless communication within a limited range, typically within homes, offices, or public hotspots. WiMAX, Bluetooth, mobile telephony, and satellite networks are not considered part of the medium-range wireless networks defined by IEEE 802.11.

Explanation

IEEE 802.11 is the correct answer because it refers to the standard for wireless local area networks (WLANs), commonly known as Wi-Fi. It is widely used for wireless communication within a limited range, typically within homes, offices, or public hotspots. WiMAX, Bluetooth, mobile telephony, and satellite networks are not considered part of the medium-range wireless networks defined by IEEE 802.11.

68. Promena analognih signala(kao uzrok gresaka pri prenosu podataka naziva se):

Harmonijsko izoblicenje

Eho

Beli Gausov sum

Dziter

Dziter je naziv za greške koje se javljaju pri prenosu analognih signala. To su slučajne fluktuacije u amplitudi ili frekvenciji signala, koje mogu biti uzrokovane različitim faktorima kao što su elektromagnetna smetnja ili loša kvaliteta prenosnog kanala. Dziter može dovesti do iskrivljenja ili gubitka podataka prilikom prenosa, što ga čini jednim od glavnih uzroka grešaka pri prenosu podataka.

Explanation

Dziter je naziv za greške koje se javljaju pri prenosu analognih signala. To su slučajne fluktuacije u amplitudi ili frekvenciji signala, koje mogu biti uzrokovane različitim faktorima kao što su elektromagnetna smetnja ili loša kvaliteta prenosnog kanala. Dziter može dovesti do iskrivljenja ili gubitka podataka prilikom prenosa, što ga čini jednim od glavnih uzroka grešaka pri prenosu podataka.

69. Pri koriscenju FTP kablova dobija se imunitet od EM do:

88MHz

30MHz

6.000MHz

108MHz

100MHz

FTP cables provide immunity from electromagnetic interference (EMI) up to a frequency of 6.000MHz. This means that the cables are designed to protect against any interference or noise in the electromagnetic spectrum up to this frequency. It is important to use FTP cables in environments where there is a high likelihood of EMI, such as in industrial settings or areas with a lot of electronic equipment. Using FTP cables helps ensure a reliable and stable connection by minimizing the impact of EMI on the transmission of data.

Explanation

FTP cables provide immunity from electromagnetic interference (EMI) up to a frequency of 6.000MHz. This means that the cables are designed to protect against any interference or noise in the electromagnetic spectrum up to this frequency. It is important to use FTP cables in environments where there is a high likelihood of EMI, such as in industrial settings or areas with a lot of electronic equipment. Using FTP cables helps ensure a reliable and stable connection by minimizing the impact of EMI on the transmission of data.

70.

Elekticni impulsi su podrazumevani nosioci signala u:

Kablova sa optickim vlaknima

Kablovima sa upredenim paricama

Koaksijalnim kablovima

IrDA sistema prenosa

Electric impulses are the default signal carriers in twisted pair cables and coaxial cables. Twisted pair cables consist of pairs of insulated copper wires twisted together, while coaxial cables have a central conductor surrounded by an insulating layer, a metallic shield, and an outer insulating layer. These types of cables are commonly used for transmitting electrical signals in various communication systems. However, optical fibers use light signals instead of electric impulses to transmit data, and IrDA (Infrared Data Association) systems use infrared light for wireless communication. Therefore, the correct answer is twisted pair cables and coaxial cables.

Explanation

Electric impulses are the default signal carriers in twisted pair cables and coaxial cables. Twisted pair cables consist of pairs of insulated copper wires twisted together, while coaxial cables have a central conductor surrounded by an insulating layer, a metallic shield, and an outer insulating layer. These types of cables are commonly used for transmitting electrical signals in various communication systems. However, optical fibers use light signals instead of electric impulses to transmit data, and IrDA (Infrared Data Association) systems use infrared light for wireless communication. Therefore, the correct answer is twisted pair cables and coaxial cables.

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71. Najcesci tipovi kablova u savremenim racunarskim mrezama su:

Koaksijalni kablovi

Kablovi sa optickim vlaknima

Bezicni kablovi

Kablovi sa uprednim paricama

Kablovi sa podrskom za Internet protokol

The correct answer is a combination of different types of cables commonly used in modern computer networks. Coaxial cables, optical fiber cables, and twisted pair cables are all commonly used in computer networks for different purposes. Coaxial cables are often used for cable television and broadband internet connections. Optical fiber cables are used for high-speed data transmission over long distances. Twisted pair cables, specifically those with support for Internet protocol, are commonly used for Ethernet connections in local area networks. These different types of cables offer different advantages and are used in different network setups based on their specific characteristics and requirements.

Explanation

The correct answer is a combination of different types of cables commonly used in modern computer networks. Coaxial cables, optical fiber cables, and twisted pair cables are all commonly used in computer networks for different purposes. Coaxial cables are often used for cable television and broadband internet connections. Optical fiber cables are used for high-speed data transmission over long distances. Twisted pair cables, specifically those with support for Internet protocol, are commonly used for Ethernet connections in local area networks. These different types of cables offer different advantages and are used in different network setups based on their specific characteristics and requirements.

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72. Neki od najcescih uzroka gresaka pri prenosu podataka su:

Preslusavanje

Protokoli

Sintaksa

Beli Gausov sum

Impulsni sum

Eho

The correct answer includes the terms "Preslusavanje" (eavesdropping), "Beli Gausov sum" (white Gaussian noise), "Impulsni sum" (impulse noise), and "Eho" (echo). These are some of the most common causes of errors in data transmission. Eavesdropping refers to unauthorized interception of data, while white Gaussian noise and impulse noise are types of interference that can corrupt the transmitted signal. Echo occurs when a reflected signal interferes with the original signal, causing distortion.

Explanation

The correct answer includes the terms "Preslusavanje" (eavesdropping), "Beli Gausov sum" (white Gaussian noise), "Impulsni sum" (impulse noise), and "Eho" (echo). These are some of the most common causes of errors in data transmission. Eavesdropping refers to unauthorized interception of data, while white Gaussian noise and impulse noise are types of interference that can corrupt the transmitted signal. Echo occurs when a reflected signal interferes with the original signal, causing distortion.

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73. Konektori kod RS-232 standarda mogu imati

1 pin

8 pinova

20 pinova

25 pinova

9 pinova

The RS-232 standard connectors can have either 25 pins or 9 pins. These pins are used for transmitting and receiving data between devices. The 25-pin connector is commonly used for older devices, while the 9-pin connector is more commonly used for modern devices.

Explanation

The RS-232 standard connectors can have either 25 pins or 9 pins. These pins are used for transmitting and receiving data between devices. The 25-pin connector is commonly used for older devices, while the 9-pin connector is more commonly used for modern devices.

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74. Organizacija za upravljanje adresama na Internetu, odredjivanje autonomnih sistema I administraciju korenih servera sistema domenskih imena su:

Internet Engineering task force, IETF

Free Software Foundation, FSF

European Telecommunications Standards Insitute, ETSI

Internet Corporation for Assigned Names and Numbers, ICANN

Internet ASSigned Numbers Authority, IANA

International Telecommunication Union, ITU

ICANN and IANA are responsible for managing addresses on the internet, determining autonomous systems, and administering the root servers of the domain name system. ICANN is the organization that oversees the assignment of domain names and IP addresses, while IANA is responsible for managing the global coordination of the DNS root, IP addressing, and other internet protocol resources. Together, they play a crucial role in ensuring the smooth functioning and stability of the internet.

Explanation

ICANN and IANA are responsible for managing addresses on the internet, determining autonomous systems, and administering the root servers of the domain name system. ICANN is the organization that oversees the assignment of domain names and IP addresses, while IANA is responsible for managing the global coordination of the DNS root, IP addressing, and other internet protocol resources. Together, they play a crucial role in ensuring the smooth functioning and stability of the internet.

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75. Oznaka RS-232 odnosi se na:

Tip konektora za kablove sa upredenim paricama

Paralelni prenos digitalnih podataka

Skup standarda za serijsku digitalnu komunikaciju

The RS-232 designation refers to a set of standards for serial digital communication. RS-232 specifies the electrical and mechanical characteristics of the interface between data terminal equipment and data communication equipment. It defines the voltage levels, signal timing, and physical connectors used for serial communication between devices. RS-232 is commonly used for connecting computers and peripherals, such as modems, printers, and mice.

Explanation

The RS-232 designation refers to a set of standards for serial digital communication. RS-232 specifies the electrical and mechanical characteristics of the interface between data terminal equipment and data communication equipment. It defines the voltage levels, signal timing, and physical connectors used for serial communication between devices. RS-232 is commonly used for connecting computers and peripherals, such as modems, printers, and mice.

76. Pracenje sprecifikacija referentnih modela omogucava:

Razvoj integrisanih resenja

Komunikaciju izmedju razlicitih sistema

Zastitu od konkurencije

Daleko vece brzine prenosa podataka

Tracking the specifications of reference models enables communication between different systems.

Explanation

Tracking the specifications of reference models enables communication between different systems.

77. Osnovne posredujuce uredjaje kod Frejm-relej tehnologije cine:

Komutator

Razvodnici

Mostovi

The correct answer is "Komutator". In Frejm-relej tehnologija, komutator is an essential component that acts as a switch, allowing the flow of current to different circuits. It helps in controlling the operation of the relay and enables it to switch between different contacts or circuits. Therefore, komutator plays a crucial role in the functioning of the basic intermediate devices in Frejm-relej technology.

Explanation

The correct answer is "Komutator". In Frejm-relej tehnologija, komutator is an essential component that acts as a switch, allowing the flow of current to different circuits. It helps in controlling the operation of the relay and enables it to switch between different contacts or circuits. Therefore, komutator plays a crucial role in the functioning of the basic intermediate devices in Frejm-relej technology.

78. Kljucni elementi u komunikacionom sistemu koji koristi opticke kablove su:

Predajnik –ultra –zvucni izvor

Sistem prenosa – upredeni par optickih vlakana

Sistem prenosa – opticko vlakno

Prijemnik – ultra –zvucni senzor

Prijemnik – fotosenzor

Predajnik – laserska dioda

The correct answer is a combination of three elements in a communication system that uses optical cables. The transmission system uses optical fibers to transmit signals, the receiver uses a photosensor to detect the signals, and the transmitter uses a laser diode to generate the signals. These elements work together to ensure efficient and accurate communication through the optical cables.

Explanation

The correct answer is a combination of three elements in a communication system that uses optical cables. The transmission system uses optical fibers to transmit signals, the receiver uses a photosensor to detect the signals, and the transmitter uses a laser diode to generate the signals. These elements work together to ensure efficient and accurate communication through the optical cables.

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79. Primena kodova za otkrivanje I ispravljanje gresaka tokom prenosa znacajnija je na

Sistemima za polunomijalnom redudantnom proverom

Sistemima koji koriste opticka vlakna

Bezicnim sistemima za prenos podataka

Zicanim sistemima za prenos podataka

The use of error detection and correction codes is more significant in wireless data transmission systems. This is because wireless communication is more prone to errors due to factors such as interference, noise, and signal attenuation. Error detection and correction codes help in identifying and correcting these errors, ensuring the integrity and accuracy of the transmitted data. In wired systems, although errors can still occur, they are generally less frequent and can be easily detected and corrected using other techniques. Therefore, the use of error detection and correction codes is not as crucial in wired systems compared to wireless systems.

Explanation

The use of error detection and correction codes is more significant in wireless data transmission systems. This is because wireless communication is more prone to errors due to factors such as interference, noise, and signal attenuation. Error detection and correction codes help in identifying and correcting these errors, ensuring the integrity and accuracy of the transmitted data. In wired systems, although errors can still occur, they are generally less frequent and can be easily detected and corrected using other techniques. Therefore, the use of error detection and correction codes is not as crucial in wired systems compared to wireless systems.

80. Jedan segment putanje kod prenosa podataka sa komutacijom veza istovremeno se moze koristiti za vise paralelnih komunikacija

Komutacija veza na to nema uticaja

Tacno

Netacno

The statement in the question states that one segment of the path in data transmission with circuit switching can be used for multiple parallel communications. However, the correct answer states that this is false, meaning that the switching of connections does have an impact on this.

Explanation

The statement in the question states that one segment of the path in data transmission with circuit switching can be used for multiple parallel communications. However, the correct answer states that this is false, meaning that the switching of connections does have an impact on this.

81. CRC-32 kod u Eternet okviru koristi se za:

Odredjivanje virtualne lokalne mreze kojoj okvir pripada

Adresovanje odredisnog uredjaja

Otkrivanje gresaka pri prenosu

Kompresovanje podataka

The CRC-32 code in an Ethernet frame is used to detect errors during transmission.

Explanation

The CRC-32 code in an Ethernet frame is used to detect errors during transmission.

82. Tehnika poznata pod nazivom CSMA/CD(Carner sense multiple access with collision detection) predstavlja realizaciju

Multipleksovanja kanala

Pristup na osnovu sadrzaja

Kontrolisanog pristupa

The correct answer is "Pristup na osnovu sadrzaja." The explanation for this answer is that CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is a technique used in Ethernet networks to control access to the network medium. It allows multiple devices to share the same communication channel by sensing whether the channel is currently in use before transmitting data. If a collision is detected, the devices involved in the collision wait for a random amount of time before reattempting transmission. Therefore, CSMA/CD provides access to the network based on the content of the channel and ensures controlled access to avoid collisions.

Explanation

The correct answer is "Pristup na osnovu sadrzaja." The explanation for this answer is that CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is a technique used in Ethernet networks to control access to the network medium. It allows multiple devices to share the same communication channel by sensing whether the channel is currently in use before transmitting data. If a collision is detected, the devices involved in the collision wait for a random amount of time before reattempting transmission. Therefore, CSMA/CD provides access to the network based on the content of the channel and ensures controlled access to avoid collisions.

83. Putanje koje su u ruter unete od strane protokola za rutiranje nazivaju se:

Fiksne putanje

Logicke putanje

Staticke putanje

Permanentne putanje

Dinamicke putanje

The correct answer is "Dinamicke putanje". This refers to the paths that are entered into the router by routing protocols. These dynamic routes are constantly updated and adjusted based on the current network conditions and the routing protocols used. They allow routers to dynamically determine the best path for forwarding data packets based on factors such as network congestion, link failures, and shortest path algorithms. Unlike static routes, which are manually configured and do not change unless modified by an administrator, dynamic routes are automatically learned and updated by the router.

Explanation

The correct answer is "Dinamicke putanje". This refers to the paths that are entered into the router by routing protocols. These dynamic routes are constantly updated and adjusted based on the current network conditions and the routing protocols used. They allow routers to dynamically determine the best path for forwarding data packets based on factors such as network congestion, link failures, and shortest path algorithms. Unlike static routes, which are manually configured and do not change unless modified by an administrator, dynamic routes are automatically learned and updated by the router.

84. Podrska za protokole transportnog sloja najcesce se nalazi u:

Telekomunikacionim kanalima

Mreznom hardveru

Korisnickom softveru

Jezgru operativnog sistema

The support for transport layer protocols is commonly found in the operating system kernel. The kernel is responsible for managing the computer's hardware and software resources, including handling network communication. It provides the necessary functionality and services for transport layer protocols to establish connections, manage data transmission, and ensure reliable delivery. Therefore, the correct answer is the operating system kernel.

Explanation

The support for transport layer protocols is commonly found in the operating system kernel. The kernel is responsible for managing the computer's hardware and software resources, including handling network communication. It provides the necessary functionality and services for transport layer protocols to establish connections, manage data transmission, and ensure reliable delivery. Therefore, the correct answer is the operating system kernel.

85. U kljucne komponente komunikacionih protokola spadaju:

Topologija mreza

Sintaksa

CSMA/CD

Vremensko uskladjivanje(tajming)

Hardverska podrska

Semantika

The correct answer includes three key components of communication protocols: syntax, timing synchronization, and semantics. Syntax refers to the rules and structure of how data is formatted and interpreted. Timing synchronization ensures that devices involved in communication are properly synchronized to transmit and receive data at the right time. Semantics refers to the meaning and interpretation of the data being communicated. These three components are essential for effective and accurate communication between devices in a network.

Explanation

The correct answer includes three key components of communication protocols: syntax, timing synchronization, and semantics. Syntax refers to the rules and structure of how data is formatted and interpreted. Timing synchronization ensures that devices involved in communication are properly synchronized to transmit and receive data at the right time. Semantics refers to the meaning and interpretation of the data being communicated. These three components are essential for effective and accurate communication between devices in a network.

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86. Eternet mrezna kartica radi na:

4. Sloju Osi modela

3. Sloju OSI modela

1. Sloju OSI modela

2. Sloju OSI modela

The correct answer is 2. Sloju OSI modela. According to the OSI model, Ethernet network cards operate at the Data Link Layer (Layer 2). This layer is responsible for the reliable transmission of data between nodes on a network, providing error detection and correction, as well as framing and addressing of data packets. Ethernet is a widely used technology for local area networks (LANs), and its network cards are designed to handle the protocols and standards of the Data Link Layer.

Explanation

The correct answer is 2. Sloju OSI modela. According to the OSI model, Ethernet network cards operate at the Data Link Layer (Layer 2). This layer is responsible for the reliable transmission of data between nodes on a network, providing error detection and correction, as well as framing and addressing of data packets. Ethernet is a widely used technology for local area networks (LANs), and its network cards are designed to handle the protocols and standards of the Data Link Layer.

87. Veci broj dodatnih bitova cija je namena otkrivanje gresaka podrazumeva:

Prenos podataka vecim brzinama

Potrebu za vecim brojem komunikacionih slojeva

Manju efikasnost prenosa

Manju verovatnocu pojavljivanja greske

Bolju mogucnost otkrivanja gresaka

The presence of additional bits for error detection implies a decrease in the efficiency of transmission, as these extra bits increase the overall size of the data being transmitted. However, it also provides a better ability to detect errors, as these additional bits are specifically designed to identify any errors that may occur during transmission.

Explanation

The presence of additional bits for error detection implies a decrease in the efficiency of transmission, as these extra bits increase the overall size of the data being transmitted. However, it also provides a better ability to detect errors, as these additional bits are specifically designed to identify any errors that may occur during transmission.

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88. Osnovne racunarskih telekomunikacija I mreza predstavlja prenos

Podataka

Signala

Informacija

Protokola

Komunikacionih slojeva

The correct answer is "Komunikacionih slojeva" which translates to "Communication layers" in English. This answer is likely correct because the question is asking about the basic principles of computer telecommunications and networks, and communication layers are a fundamental concept in this field. Communication layers refer to the different levels or protocols that are used to transmit data between devices in a network, such as the physical layer, data link layer, network layer, etc.

Explanation

The correct answer is "Komunikacionih slojeva" which translates to "Communication layers" in English. This answer is likely correct because the question is asking about the basic principles of computer telecommunications and networks, and communication layers are a fundamental concept in this field. Communication layers refer to the different levels or protocols that are used to transmit data between devices in a network, such as the physical layer, data link layer, network layer, etc.

89. Formalno standardizovani referentni model racunarskih telekomunikacija je:

International Standards Organization

TCP/IP

Ethernet

Open Systems Interconnectiong

The correct answer is Open Systems Interconnection (OSI). OSI is a formal standardized reference model for computer telecommunications. It provides a framework for designing, implementing, and maintaining network protocols in a layered approach. The model consists of seven layers, each responsible for specific functions and interactions between different network components. OSI is widely used in the field of computer networking to ensure interoperability and compatibility between different systems and devices.

Explanation

The correct answer is Open Systems Interconnection (OSI). OSI is a formal standardized reference model for computer telecommunications. It provides a framework for designing, implementing, and maintaining network protocols in a layered approach. The model consists of seven layers, each responsible for specific functions and interactions between different network components. OSI is widely used in the field of computer networking to ensure interoperability and compatibility between different systems and devices.

90. Mrezni most (bridz) funkcionise na:

Fizickom sloju

Sloju veze

Mreznom sloju

The correct answer is "Sloju veze" which translates to "Link layer" in English. The link layer is responsible for the physical transmission of data over the network. It handles tasks such as framing, error detection and correction, and media access control. This layer ensures that data packets are transmitted reliably between nodes on the same network segment.

Explanation

The correct answer is "Sloju veze" which translates to "Link layer" in English. The link layer is responsible for the physical transmission of data over the network. It handles tasks such as framing, error detection and correction, and media access control. This layer ensures that data packets are transmitted reliably between nodes on the same network segment.

91. U zadatke protokola na predajnom racunaru spadaju:

Provera I uklanjanje kontrolnih podataka

Podela podataka u manje celina

Preuzimanje podataka sa medijuma za prenos

Sklapanje primljenih fragmenata

Adresovanje paketa

The correct answer is "Podela podataka u manje celina, Adresovanje paketa." This is because dividing data into smaller units (data segmentation) and addressing packets are both tasks performed by the protocol on the sending computer. Data segmentation is necessary to break down large amounts of data into smaller, more manageable units for transmission, while addressing packets involves assigning unique identifiers to each packet so that they can be properly routed to their destination.

Explanation

The correct answer is "Podela podataka u manje celina, Adresovanje paketa." This is because dividing data into smaller units (data segmentation) and addressing packets are both tasks performed by the protocol on the sending computer. Data segmentation is necessary to break down large amounts of data into smaller, more manageable units for transmission, while addressing packets involves assigning unique identifiers to each packet so that they can be properly routed to their destination.

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92. Pravila koja vaze za telekomunikacionu sobu u sistemu strukturnog kabliranja su:

Telekomunikacionu sobu treba postaviti sto blize instalacijama za lift

U telekomunikacionu sobu ne treba stavljati opremu za el mrezu

Jedna telekomunikaciona soba ne bi trebalo da pokvriva vise od 1.000m2

Telekomunikaciona soba treba da objedini elektricnu, telefonsku I racunarsku mrezu

Telekomunikaciona soba treba da se nalazi sto blize centru sprata

Telekomunikaciona soba treba da se nalazi sto blize rubu zgrade

The correct answer is a combination of three statements. First, it states that electrical equipment should not be placed in the telecommunication room. This is because electrical equipment can interfere with the functioning of the telecommunication equipment. Second, it mentions that one telecommunication room should not cover an area larger than 1,000m2. This is to ensure that the telecommunication signals can be efficiently distributed within the designated area. Lastly, it states that the telecommunication room should be located as close as possible to the center of the floor. This positioning allows for better connectivity and distribution of telecommunication services throughout the building.

Explanation

The correct answer is a combination of three statements. First, it states that electrical equipment should not be placed in the telecommunication room. This is because electrical equipment can interfere with the functioning of the telecommunication equipment. Second, it mentions that one telecommunication room should not cover an area larger than 1,000m2. This is to ensure that the telecommunication signals can be efficiently distributed within the designated area. Lastly, it states that the telecommunication room should be located as close as possible to the center of the floor. This positioning allows for better connectivity and distribution of telecommunication services throughout the building.

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93. Eksterni modemi se sa racunarskim sistemom najcesce povezuju putem

Serijskog porta

USB porta

PCI slota

Paralelnog porta

ISA slota

External modems are most commonly connected to a computer system through either a serial port or a USB port. Serial ports are older and slower than USB ports, but they are still used for connecting certain devices, such as modems. USB ports, on the other hand, are faster and more versatile, allowing for the connection of a wide range of devices, including modems. Therefore, both serial and USB ports can be used to connect external modems to a computer system.

Explanation

External modems are most commonly connected to a computer system through either a serial port or a USB port. Serial ports are older and slower than USB ports, but they are still used for connecting certain devices, such as modems. USB ports, on the other hand, are faster and more versatile, allowing for the connection of a wide range of devices, including modems. Therefore, both serial and USB ports can be used to connect external modems to a computer system.

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94. U osnovne hijerarhijske nivoe kod strukturnog kabliranja spadaju:

Horizontalno kabliranje

Vertikalno kalbiranje

Kabliranje radnog prostora

Kabliranje upredenim paricama

Kabliranje kampusa

Kabliranje optickim vlaknima

Kabliranje koaksijalnim kablovima

The correct answer is the order in which the different levels of structured cabling are arranged. The first level is horizontal cabling, which refers to the cabling that connects the telecommunications rooms or equipment rooms to the work area outlets. The second level is vertical cabling, which connects the equipment rooms or telecommunications rooms to the entrance facilities or service provider's point of presence. The third level is campus cabling, which connects multiple buildings within a campus or site.

Explanation

The correct answer is the order in which the different levels of structured cabling are arranged. The first level is horizontal cabling, which refers to the cabling that connects the telecommunications rooms or equipment rooms to the work area outlets. The second level is vertical cabling, which connects the equipment rooms or telecommunications rooms to the entrance facilities or service provider's point of presence. The third level is campus cabling, which connects multiple buildings within a campus or site.

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95. U aktivnu mreznu opremu spadaju

Konektori

Razvodnici

Pec-kablovi

Uticnice

Kanalice

Kablovi

Komutatori

Ruteri

The correct answer includes the devices that are considered active network equipment. These devices are responsible for transmitting and processing data within a network. Connectors, distributors, power cables, sockets, and cable channels are passive components that do not actively participate in data transmission or processing. Therefore, they are not included in the active network equipment category.

Explanation

The correct answer includes the devices that are considered active network equipment. These devices are responsible for transmitting and processing data within a network. Connectors, distributors, power cables, sockets, and cable channels are passive components that do not actively participate in data transmission or processing. Therefore, they are not included in the active network equipment category.

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96. U pasivnu mreznu opremu spadaju

Mrezni mostovi

Modemi

Konektori

Razvodnici

Krajnji uredjaji

Komutatori

Uticnice

Ruteri

Kablovi

Passive network equipment refers to devices that do not require power to function and are used to connect and distribute network signals. Connectors, outlets, and cables are examples of passive network equipment. These components are used to establish physical connections between devices and enable the transmission of data across a network.

Explanation

Passive network equipment refers to devices that do not require power to function and are used to connect and distribute network signals. Connectors, outlets, and cables are examples of passive network equipment. These components are used to establish physical connections between devices and enable the transmission of data across a network.

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97. Komunikacioni protokol cini skup pravila za:

Signalizaciju

Realizaciju telekomunikacionog hardvera

Proveru autenticnosti

Dizajniranje racunarskih mreza

Modelovanje problema iz prakse

Kontrolu gresaka

Predstavljanje podataka

The communication protocol consists of a set of rules for signaling, authenticating, error control, and data representation. It defines how devices should communicate with each other, ensuring that the information is transmitted accurately, securely, and efficiently. Signalization involves the exchange of control information between devices to establish, maintain, and terminate a communication session. Authentication verification ensures that the communicating parties are who they claim to be. Error control ensures the integrity of data transmission by detecting and correcting errors. Data representation defines the format and structure of the data being transmitted.

Explanation

The communication protocol consists of a set of rules for signaling, authenticating, error control, and data representation. It defines how devices should communicate with each other, ensuring that the information is transmitted accurately, securely, and efficiently. Signalization involves the exchange of control information between devices to establish, maintain, and terminate a communication session. Authentication verification ensures that the communicating parties are who they claim to be. Error control ensures the integrity of data transmission by detecting and correcting errors. Data representation defines the format and structure of the data being transmitted.

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98. Sistem horizontalnog kabliranja, specificiran u TIA/EIA-568-B.1 standardu, obuhvata

Hijerarhiju demarkcionih tacaka

Mrezna uticnica

Gornje slojeve OSI I TCP/IP modela

Patch kablova

Horizontalno kabliranje

Aktivnu mreznu opremu

Mrezne konektore

The correct answer includes the components of a horizontal cabling system specified in the TIA/EIA-568-B.1 standard. These components are: mrezna uticnica (network outlet), patch kablova (patch cables), horizontalno kabliranje (horizontal cabling), and mrezne konektore (network connectors). These components are essential for establishing a structured cabling system that supports network connectivity and communication within a building or premises.

Explanation

The correct answer includes the components of a horizontal cabling system specified in the TIA/EIA-568-B.1 standard. These components are: mrezna uticnica (network outlet), patch kablova (patch cables), horizontalno kabliranje (horizontal cabling), and mrezne konektore (network connectors). These components are essential for establishing a structured cabling system that supports network connectivity and communication within a building or premises.

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99. U aktivnu mreznu opremu spadaju:

Uticnice

Ruteri

Razvodnici

Kablovi

Komutatori

Pec-kablovi

Konektori

Kanalice

The correct answer includes "Ruteri" and "Komutatori." These are both types of active network equipment. Ruteri, or routers, are devices that connect multiple networks together and route data packets between them. Komutatori, or switches, are devices that connect multiple devices within a local area network (LAN) and forward data packets between them. Both routers and switches play a crucial role in managing and directing network traffic, making them essential components of active network equipment.

Explanation

The correct answer includes "Ruteri" and "Komutatori." These are both types of active network equipment. Ruteri, or routers, are devices that connect multiple networks together and route data packets between them. Komutatori, or switches, are devices that connect multiple devices within a local area network (LAN) and forward data packets between them. Both routers and switches play a crucial role in managing and directing network traffic, making them essential components of active network equipment.

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