Racunarske Mreze I Kolokvijum (I Deo)

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  • 1/99 Pitanja

    Najmanju racunarsku mrezu u navedenom skupu cini:

    • Gradska racunarska mreza(MAN)
    • Regionalna Racunarska mreza(WAN)
    • Globalna racunarska mreza(Internet)
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  • 2. 

    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

    Correct Answer
    A. Moguce je otkriti I ispraviti
    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.

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  • 3. 

    Neke od osnovnih topologija racunarskih mreza su:

    • Koaksijalni kabl

    • Kabl sa optickim vlaknima

    • Zvezda

    • Prsten

    • Kabl sa upredenim paricama

    • Magistrala

    Correct Answer(s)
    A. Zvezda
    A. Prsten
    A. Magistrala
    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.

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  • 4. 

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

    • Internet

    • Token ring

    • Eternet

    Correct Answer
    A. Eternet
    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.

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  • 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)

    Correct Answer
    A. Globalna racunarska mreza(Internet)
    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.

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  • 6. 

    Oznaka RS-232 odnosi se na:

    • Paralelni prenos digitalnih podataka

    • Tip konektora za kabloze sa upredenim paricama

    • Skup standarda za serijsku digitalnu komunikaciju

    Correct Answer
    A. Skup standarda za serijsku digitalnu komunikaciju
    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.

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  • 7. 

    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

    Correct Answer
    A. Nudi vece mogucnosti za otkrivanje I ispravljanje gresaka
    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.

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  • 8. 

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

    • Primena kontrolne sume

    • Polinomijalna redudantna provera

    • Ponovno slanje paketa

    Correct Answer
    A. Ponovno slanje paketa
    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.

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  • 9. 

    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

    Correct Answer
    A. Prekid linije
    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.

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  • 10. 

    Najpopularnija zicana tehnologija za lokalne racunarske mreze je:

    • USB

    • IEEE 802.11

    • Token-ring

    • Eternet

    Correct Answer
    A. Eternet
    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.

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  • 11. 

    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

    Correct Answer(s)
    A. Polinomijalna provera
    A. Provera parnosti
    A. Longitudinalna redundantna provera
    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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  • 12. 

    Kod prenosa podataka sa komutacijom paketa podaci se prenose:

    • U vise paketskim jedinicama

    • U zavisnosti od tehnologije na sloju veze podataka

    • Odjednom

    Correct Answer
    A. U vise paketskim jedinicama
    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.

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  • 13. 

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

    • Netacno

    • Tacno

    • Zavisi od protokola koji se koristi na visim slojevima

    Correct Answer
    A. Tacno
    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.

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  • 14. 

    Za standardizaciju javne telefonske mreze zaduzena je organizacija:

    • PTT

    • Medjunarodna Telekomunikaciona Unija(ITU)

    • IEEE

    • IETF

    Correct Answer
    A. Medjunarodna Telekomunikaciona Unija(ITU)
    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.

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  • 15. 

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

    • Internet

    • Eternet

    • Token-ring

    Correct Answer
    A. Eternet
    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.

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  • 16. 

    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)

    Correct Answer
    A. Gradska Racunarska mreza(Metropolitan Area Network. MAN)
    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.

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  • 17. 

    Mrezni most(bridz) podrazumevano poseduje

    • 2 uticnice

    • Vise od 2 uticnice

    • 1 uticnicu

    Correct Answer
    A. 2 uticnice
    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.

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  • 18. 

    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

    Correct Answer
    A. Razilicite brzine slanja I primanja podataka
    Explanation
    The term "asimetricno" in the name ADSL technology refers to different speeds for sending and receiving data.

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  • 19. 

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

    • Pristupa na osnovu sadrzaja

    • Multipleksovanja kanala

    • Kontrolisanog pristupa

    Correct Answer
    A. Pristupa na osnovu sadrzaja
    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.

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  • 20. 

    Logicka topologija prve verzije Eterneta je:

    • Magistrala

    • Prsten

    • Zvezda

    Correct Answer
    A. Magistrala
    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.

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  • 21. 

    U mrezne uredjaje koji analiziraju odredisnu adresu pre prosledjivanja okvira spadaju

    • Pojacivac signala(ripiter)

    • Mrezni most(bridz)

    • Razvodnik signala(hab)

    • Mrezni komutator(svic)

    Correct Answer(s)
    A. Mrezni most(bridz)
    A. Mrezni komutator(svic)
    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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  • 22. 

    OSI referentni model definise

    • 6 slojeva

    • 7 slojeva

    • 5 slojeva

    Correct Answer
    A. 7 slojeva
    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.

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  • 23. 

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

    • Glavno cvoriste

    • Radni prostor

    • Telekomunikacioni ormar

    Correct Answer
    A. Glavno cvoriste
    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.

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  • 24. 

    Racunarske mreze resavaju

    • Tehnicke probleme vezane za komunikaciju

    • Organizacione probleme vezane za komunikaciju

    • Sustinske probleme vezane za komunikaciju

    • Jezicke probleme vezane za komunikaciju

    Correct Answer
    A. Tehnicke probleme vezane za komunikaciju
    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.

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  • 25. 

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

    • Dziter

    • Harmonijsko izoblicenje

    • Eho

    • Poduzno slabljenje

    Correct Answer
    A. Eho
    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.

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  • 26. 

    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)

    Correct Answer
    A. Protokol sa uspostavljanjem veze
    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.

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  • 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

    Correct Answer(s)
    A. Bezicne racunarske mreze
    A. Zicne (kablirane ) racunarske mreze
    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.

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  • 28. 

    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

    Correct Answer
    A. Radni prostor
    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.

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  • 29. 

    Najnizi nivo zastite od EM zracenja pruzaju

    • STP kablovi

    • UTP kablovi

    • SFTP kablovi

    • FTP kablovi

    Correct Answer
    A. UTP kablovi
    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.

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  • 30. 

    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

    Correct Answer
    A. 8/1.000
    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.

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  • 31. 

    Moduli operativnog sistema koji obezbedjuju podrsku za odredjeni mrezni hardver nazivaju

    • Mrezni interfejsi

    • Aplikacije

    • Drajveri

    • Komunikacioni slojevi

    • Mrezne kartice

    Correct Answer
    A. Drajveri
    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.

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  • 32. 

    Najpopularnija zicna tehnologija za lokalne racunarske mreze je:

    • IEEE 802.11

    • USB

    • Eternet

    • Token-ring

    Correct Answer
    A. Eternet
    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.

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  • 33. 

    Najjednostavniji nacin za otklanjanje otkrivene greske koja se javila tokom

    • Polinomijalna redundantna provera

    • Ponovno slanje paketa

    • Primena kontrolne sume

    Correct Answer
    A. Ponovno slanje paketa
    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.

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  • 34. 

    Naziv “Debeli Eternet ” (engl. Ethernet) odnosi se na koriscenje

    • Kablova sa upredenim paricama

    • Kablova sa optickim vlaknima

    • Koaksijalnih kablova

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

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  • 35. 

    Kod prenosa podataka sa komutacijom paketa svi paketi putuju istom putanjom

    • Komutacija paketa na to nema uticaja

    • Netacno

    • Tacno

    Correct Answer
    A. Netacno
    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.

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  • 36. 

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

    • Eternet

    • Bluetooth

    • WiMAX

    • IEEE 802.11

    Correct Answer
    A. WiMAX
    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.

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  • 37. 

    Osnove racunarskih telekomunikacija I mreza predstavlja prenos:

    • Signala

    • Komunikacionih slojeva

    • Podataka

    • Protokola

    • Informacija

    Correct Answer
    A. Komunikacionih slojeva
    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.

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  • 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

    Correct Answer
    A. Parna parnost
    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.

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  • 39. 

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

    • IEEE 802.11

    • Eternet

    • Frejm-relej

    Correct Answer
    A. Frejm-relej
    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.

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  • 40. 

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

    • Vreme kontrole pristupa mediju

    • Vreme propagacije

    • Vreme prenosa

    Correct Answer
    A. Vreme propagacije
    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.

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  • 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

    Correct Answer
    A. Maksimalan uticaj
    Explanation
    Changing one bit of data will have the maximum impact on the value of the checksum that relates to that data.

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  • 42. 

    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

    Correct Answer
    A. Govor – kategorija 3, podaci kategorija 5e
    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.

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  • 43. 

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

    • 150Mb/s

    • 1Mb/s

    • 10Mb/s

    • 1Gb/s

    Correct Answer
    A. 150Mb/s
    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.

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  • 44. 

    Uredjaji koji ne poseduju prihvatnu memoriju za okvire su:

    • Pojacivac signala(ripiter)

    • Mrezni most(bridz)

    • Mrezni komutator(svic)

    • Razvodnik signala (hab)

    Correct Answer(s)
    A. Pojacivac signala(ripiter)
    A. Razvodnik signala (hab)
    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.

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  • 45. 

    Ruteri odluke o usmeravanju paketa donose na osnovu:

    • Fizickih adresa(adresa u okviru)

    • Logickih adresa(adresa u datagramu)

    • Portova (adresa na transportnom sloju)

    Correct Answer
    A. Logickih adresa(adresa u datagramu)
    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.

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  • 46. 

    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

    Correct Answer
    A. 5 metara
    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.

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  • 47. 

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

    • Smanjivanje kasnjenja

    • Ispravljanje gresaka

    • Otkrivanje gresaka

    • Duplo vece brzine prenosa

    Correct Answer(s)
    A. Ispravljanje gresaka
    A. Otkrivanje gresaka
    Explanation
    Jednodimenzionalna provera parnosti omogućava otkrivanje i ispravljanje grešaka nastalih tokom prenosa podataka, što znači da može detektovati i popraviti greške u podacima.

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  • 48. 

    Ruter Funkcionise na: 

    • Mreznom sloju

    • Sloju aplikacije

    • Sloju veze

    • Fizickom sloju

    • Transportnom sloju

    Correct Answer
    A. Mreznom sloju
    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.

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  • 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

    Correct Answer
    A. Redosled stizanja paketa nije predvidiv
    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.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 06, 2015
    Quiz Created by
    Shonez
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