Ipt - Ispit 1. Deo

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Ipt - Ispit 1. Deo - Quiz

IPT - Ispit 1. deo.


Questions and Answers
  • 1. 

    Šesti sloj OSI referentnog modela je:

    • A.

      Prezentacioni sloj

    • B.

      Aplikacioni sloj

    • C.

      Sloj sesije

    • D.

      Mrežni sloj

    Correct Answer
    A. Prezentacioni sloj
    Explanation
    The correct answer is the Prezentacioni sloj (Presentation layer). This layer is responsible for formatting and presenting data to the application layer. It ensures that the data is in a usable format by converting it into a format that the application layer can understand. The presentation layer also handles encryption and decryption of data for secure communication between different systems.

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  • 2. 

    Nabroj tri mrežne arhitekture:

    • A.

      ITU, RFC, CCITT

    • B.

      OSI, TCP/IP, X.25

    • C.

      Zvezda, prsten i magistrala

    • D.

      Token bus, Token ring, CSMA/CD

    Correct Answer
    B. OSI, TCP/IP, X.25
    Explanation
    The correct answer is OSI, TCP/IP, X.25. These are three network architectures. OSI (Open Systems Interconnection) is a conceptual framework that standardizes the functions of a communication system into seven layers. TCP/IP (Transmission Control Protocol/Internet Protocol) is a protocol suite that allows computers to communicate over the internet. X.25 is a packet-switched network protocol that was widely used in the past for transmitting data over long distances.

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  • 3. 

    Skup slojeva i protokola naziva se:

    • A.

      Interfejsna arhitektura

    • B.

      Kodirana arhitektura

    • C.

      Slojevita arhitektura

    • D.

      Mrežna arhitektura

    Correct Answer
    C. Slojevita arhitektura
    Explanation
    The term "slojevita arhitektura" in Croatian translates to "layered architecture" in English. This refers to the concept of organizing a system or network into different layers or levels, with each layer performing specific functions and providing services to the layer above it. This approach allows for modular design, easier troubleshooting, and interoperability between different systems. Therefore, "slojevita arhitektura" is the correct term for describing the concept of layering in the context of protocols and networks.

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  • 4. 

    ATM je:

    • A.

      Integrisana mreža digitalnih servisa i može se koristiti samo za telefoniju

    • B.

      Protokol u WAN mrežama

    • C.

      Integrisana mreža digitalnih servisa i može se koristiti za računarske mreže i telefoniju

    • D.

      Mreža koja omogućava asinhroni prenos govora, podataka i video zapisa

    Correct Answer
    D. Mreža koja omogućava asinhroni prenos govora, podataka i video zapisa
    Explanation
    The correct answer is "Mreža koja omogućava asinhroni prenos govora, podataka i video zapisa." This answer states that an ATM (Asynchronous Transfer Mode) is a network that allows for the asynchronous transmission of voice, data, and video. ATM is a technology used in telecommunications networks to transmit different types of information efficiently. It is not limited to only telephony services but can also be used for computer networks.

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  • 5. 

    PDU je skraćenica za:

    • A.

      Protocol Data Unit

    • B.

      Paging Domen Unit

    • C.

      Protocol Digital Uplink

    • D.

      Partial Domen Unit

    Correct Answer
    A. Protocol Data Unit
    Explanation
    The correct answer is "Protocol Data Unit" because PDU stands for Protocol Data Unit. A PDU is a specific unit of data that is transmitted over a network and is used to encapsulate data at different layers of the network protocol stack. It carries the necessary information for the network protocols to operate and communicate with each other effectively.

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  • 6. 

    Koji referentni model je standardizovan od strane ISO – a?

    • A.

      X.25

    • B.

      OSI

    • C.

      TCP/IP

    • D.

      ATM

    Correct Answer
    B. OSI
    Explanation
    The correct answer is OSI. OSI (Open Systems Interconnection) is a reference model that was standardized by ISO (International Organization for Standardization). It provides a framework for understanding and implementing network protocols and consists of seven layers, each responsible for a specific function in the communication process. X.25, TCP/IP, and ATM are all network protocols but are not the referentni model standardized by ISO.

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  • 7. 

    Virtuelno kolo se uspostavlja kod:

    • A.

      Datagram servisa

    • B.

      Nikada se ne uspostavlja

    • C.

      Servisa sa uspostavom veze

    • D.

      Kod prenosa podataka

    Correct Answer
    C. Servisa sa uspostavom veze
    Explanation
    The correct answer is "Servisa sa uspostavom veze". This means that a virtual circuit is established in a service that requires a connection to be established before data transfer can occur. This type of service ensures that a reliable and dedicated communication path is established between the sender and receiver before any data is transmitted. This is in contrast to datagram services, where each packet is treated independently and does not require a pre-established connection.

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  • 8. 

    Konverzijom u standardni format podataka bavi se:

    • A.

      Transportni sloj

    • B.

      Sloj sesije

    • C.

      Aplikacioni sloj

    • D.

      Prezentacioni sloj

    Correct Answer
    D. Prezentacioni sloj
    Explanation
    The correct answer is the Prezentacioni sloj (Presentation layer). The Presentation layer is responsible for converting data from the application layer into a standard format that can be understood by the receiving system. It handles tasks such as data encryption, compression, and formatting. The other options mentioned, Transportni sloj (Transport layer), Sloj sesije (Session layer), and Aplikacioni sloj (Application layer), are not directly involved in the conversion of data into a standard format.

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  • 9. 

    Glavna karakteristika fizičkog sloja je:

    • A.

      Mehanička, električna, funkcionalna i proceduralna

    • B.

      Velika pouzdanost i imunost na nastanak greške

    • C.

      Fizički protokol

    • D.

      Tip medijuma za prenos podataka

    Correct Answer
    A. Mehanička, električna, funkcionalna i proceduralna
    Explanation
    The main characteristic of the physical layer is that it encompasses mechanical, electrical, functional, and procedural aspects. This means that the physical layer deals with the physical transmission of data, including the mechanical components involved (such as cables and connectors), the electrical signals used for communication, the functional aspects of how data is transmitted and received, and the procedures followed for data transmission. This comprehensive approach ensures that the physical layer provides a reliable and error-resistant means of data transmission.

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  • 10. 

    Datagram je tip servisa u kome:

    • A.

      Postoji uspostava veze

    • B.

      Nema uspostave veze

    • C.

      Postoji raskidanje veze

    • D.

      Postoji uspostava i raskidanje veze

    Correct Answer
    B. Nema uspostave veze
    Explanation
    Datagram is a type of service where there is no establishment of a connection. This means that there is no need for any initial setup or negotiation between the sender and receiver before data transmission. Each packet, or datagram, is treated independently and can take different routes to reach its destination. This lack of connection establishment allows for faster and more efficient transmission, but it also means that there is no guarantee of delivery or order of arrival.

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  • 11. 

    Jedinica podataka na sloju veze je:

    • A.

      Bit

    • B.

      Paket

    • C.

      Ram

    • D.

      Segment

    Correct Answer
    C. Ram
    Explanation
    The correct answer is "Ram". In networking, a data unit at the data link layer is referred to as a "frame". However, in this context, the term "Ram" is used instead. Ram stands for Random Access Memory, which is a type of computer memory that allows data to be read from and written to in any order. It is used to temporarily store data that is being processed by the computer.

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  • 12. 

    Navesti funkciju aplikacionog sloja:

    • A.

      Obezbeđuje fizički prenos podataka

    • B.

      Obezbeđuje konverziju podataka

    • C.

      Omogućava korisniku da pristupi internetu

    • D.

      Omogućava aplikacionom procesu da pristupi OSI okruženju

    Correct Answer
    D. Omogućava aplikacionom procesu da pristupi OSI okruženju
  • 13. 

    Skup slojeva i protokola naziva se:

    • A.

      Slojevita arhitektura

    • B.

      Interfejsna arhitektura

    • C.

      Kodirana arhitektura

    • D.

      Mrežna arhitektura

    Correct Answer
    A. Slojevita arhitektura
    Explanation
    The correct answer is "Slojevita arhitektura" (Layered architecture). This term refers to the organization of network protocols and software into different layers or levels, each responsible for a specific function. This architecture allows for modular design, easier troubleshooting, and the ability to replace or upgrade individual layers without affecting the entire system. It promotes interoperability and standardization by defining clear interfaces between layers.

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  • 14. 

    Koji referentni model je standardizovan od strane ISO – a?

    • A.

      X.25

    • B.

      OSI

    • C.

      TCP/IP

    • D.

      ATM

    Correct Answer
    B. OSI
    Explanation
    The correct answer is OSI. OSI (Open Systems Interconnection) is a reference model that was standardized by ISO (International Organization for Standardization). It provides a framework for understanding and implementing network protocols and services. X.25, TCP/IP, and ATM are all networking protocols or technologies, but they are not the referent model standardized by ISO.

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  • 15. 

    Koji je prvi sloj u OSI referentnom modelu:

    • A.

      Aplikacioni sloj

    • B.

      Mrežni sloj

    • C.

      Fizički sloj

    • D.

      Sloj veze

    Correct Answer
    C. Fizički sloj
    Explanation
    The first layer in the OSI reference model is the physical layer. This layer is responsible for the physical transmission of data over the network, including the electrical, mechanical, and functional aspects of the network interface. It deals with the physical connection between devices, such as cables, connectors, and network interface cards. The physical layer ensures that the bits are transmitted reliably from one device to another.

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  • 16. 

    Transportni sloj OSI modela:

    • A.

      Bavi se prenosom bitova između dva uređaja

    • B.

      Zadužen je za kontrolu toka i detekciju grešaka, uspostavljanje, raskidanje i održavanje veze

    • C.

      Bavi se logičkim adresiranjem i rutiranjem paketa po mreži

    • D.

      Određuje koji je tip veze potrebno uspostaviti i po potrebi vrši segmentaciju podataka u datagrame

    Correct Answer
    D. Određuje koji je tip veze potrebno uspostaviti i po potrebi vrši segmentaciju podataka u datagrame
    Explanation
    The transport layer of the OSI model determines the type of connection that needs to be established and performs data segmentation into datagrams if necessary. This layer is responsible for ensuring reliable communication by controlling the flow and detecting errors, as well as establishing, terminating, and maintaining connections between devices. It does not handle the physical transmission of bits between devices or the logical addressing and routing of packets in the network.

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  • 17. 

    OSI referentni model se odnosi na:

    • A.

      7 slojeva

    • B.

      3 sloja

    • C.

      6 slojeva

    • D.

      4 sloja

    Correct Answer
    A. 7 slojeva
    Explanation
    The correct answer is 7 slojeva. The OSI referentni model se odnosi na 7 slojeva (fizički, data link, mrežni, transportni, sesijski, prezentacijski i aplikacijski sloj) koji se koriste za opisivanje komunikacije između računarskih sistema. Svaki sloj ima svoju specifičnu ulogu i odgovornost u procesu prenosa podataka.

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  • 18. 

    Sintaksa protokola se odnosi na:

    • A.

      Format podataka i nivo signala

    • B.

      Upravljačke informacije

    • C.

      Tip sinhronizacije

    • D.

      Tip ramova

    Correct Answer
    A. Format podataka i nivo signala
    Explanation
    The correct answer is "Format podataka i nivo signala". This refers to the syntax of the protocol, which includes the structure and format of the data being transmitted, as well as the level of the signal used for communication. It is important for ensuring proper communication and understanding between devices or systems using the protocol.

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  • 19. 

    Primitive su podeljene u:

    • A.

      8 klasa

    • B.

      4 klasе

    • C.

      3 klase

    • D.

      16 klasa

    Correct Answer
    B. 4 klasе
    Explanation
    The given answer states "4 klasе" as the correct answer. However, without any context or additional information, it is difficult to determine the exact meaning of "klasе" and its relevance to the question. Therefore, an explanation cannot be provided.

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  • 20. 

    Prema OSI modelu, sloj N na jednoj mašini komunicira sa:

    • A.

      Slojevima od 1 do N na drugoj mašini

    • B.

      Slojem N+2 na drugoj mašini

    • C.

      Slojem N na drugoj mašini

    • D.

      Sa fiziškim slojem na drugoj mašini

    Correct Answer
    C. Slojem N na drugoj mašini
    Explanation
    According to the OSI model, layer N on one machine communicates with layer N on another machine. This means that the communication occurs between the same layer on both machines.

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  • 21. 

    SDU je skraćenica za:

    • A.

      Service Digital Uplink

    • B.

      Service Domen Unification

    • C.

      Service Data Unification

    • D.

      Service Data Unit

    Correct Answer
    D. Service Data Unit
    Explanation
    SDU is an abbreviation for Service Data Unit. This term is commonly used in telecommunications and refers to a specific unit of data that is transmitted over a network. The SDU contains the actual payload or information that is being sent, along with any necessary control information. It is an important concept in network protocols and is used to ensure the efficient and reliable transmission of data.

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  • 22. 

    Primitive su:

    • A.

      Zahtev, indikacija, odgovor i potvrda

    • B.

      Otkaz

    • C.

      Prekid

    • D.

      Alternativna ruta

    Correct Answer
    A. Zahtev, indikacija, odgovor i potvrda
    Explanation
    The correct answer is "Zahtev, indikacija, odgovor i potvrda". This sequence represents the steps involved in a communication process. It starts with a request or a demand (zahtev), followed by an indication or a signal (indikacija) that the request has been received. Then, there is a response (odgovor) to the request, and finally, a confirmation (potvrda) that the response has been received. This sequence ensures effective communication and understanding between the parties involved.

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  • 23. 

    Servis se formalno specificira preko:

    • A.

      Interfejsa

    • B.

      Primitiva

    • C.

      Aplikacija

    • D.

      Protokola

    Correct Answer
    B. Primitiva
    Explanation
    A service is formally specified through primitives. Primitives are the basic operations or functions that can be performed on a service. They define the actions that can be taken by the service and the parameters required for those actions. Primitives provide a standardized way of interacting with the service and allow different components or systems to communicate with each other effectively.

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  • 24. 

    X.25 je standard za:

    • A.

      Interfejs između DCE i transmisionog medijuma

    • B.

      Interfejs između DTE i DCE

    • C.

      Interfejs između DTE i mrežnog adaptera

    • D.

      Interfejs između DCE i DSE

    Correct Answer
    B. Interfejs između DTE i DCE
    Explanation
    X.25 je standard koji definiše interfejs između DTE (Data Terminal Equipment) i DCE (Data Circuit-terminating Equipment). DTE se odnosi na uređaje kao što su računari ili terminali koji generišu i primaju podatke, dok se DCE odnosi na opremu koja povezuje DTE uređaje sa transmisionim medijumom, kao što su modemi ili ruteri. Dakle, X.25 standard definiše kako će se podaci prenositi između ovih dveju vrsta uređaja.

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  • 25. 

    Glavna karakteristika fizičkog sloja je:

    • A.

      Velika pouzdanost i imunost na nastanak greške

    • B.

      Fizički protokol

    • C.

      Mehanička, električna, funkcionalna i proceduralna

    • D.

      Tip medijuma za prenos podataka

    Correct Answer
    C. Mehanička, električna, funkcionalna i proceduralna
    Explanation
    The main characteristic of the physical layer is that it encompasses the mechanical, electrical, functional, and procedural aspects of data transmission. This means that the physical layer is responsible for the physical transmission of data, including the design and implementation of the hardware and the protocols used for communication. It ensures that the data is transmitted reliably and efficiently, taking into account the various aspects of the transmission medium.

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  • 26. 

    Šesti sloj OSI referentnog modela je:

    • A.

      Aplikacioni sloj

    • B.

      Sloj sesije

    • C.

      Mrežni sloj

    • D.

      Prezentacioni sloj

    Correct Answer
    D. Prezentacioni sloj
    Explanation
    The correct answer is the Prezentacioni sloj (Presentation layer). In the OSI reference model, the Presentation layer is responsible for data formatting and conversion, encryption and decryption, and compression and decompression. It ensures that data from the application layer is properly formatted and can be understood by the receiving system. This layer also handles data encryption and decryption for secure communication.

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  • 27. 

    ATM je mreža sa:

    • A.

      Komutacijom ćelija

    • B.

      Komutacijom poruka

    • C.

      Komutacijom ramova

    • D.

      Komutacijom ramova

    Correct Answer
    A. Komutacijom ćelija
    Explanation
    ATM (Asynchronous Transfer Mode) is a network that uses cell switching, which means that data is transmitted in fixed-size cells. These cells are switched and routed through the network independently, allowing for efficient and reliable transmission of data. This form of switching is known as cell switching or "komutacijom ćelija" in Serbian. It is different from message switching or frame switching, which are other methods of data transmission used in different types of networks.

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  • 28. 

    Pristupom mreži preko aplikacije bavi se:

    • A.

      Transportni sloj 

    • B.

      Prezentacioni sloj

    • C.

      Aplikacioni sloj

    • D.

      Sloj sesije

    Correct Answer
    C. Aplikacioni sloj
    Explanation
    The correct answer is the "Aplikacioni sloj" (Application layer). This layer is responsible for providing services directly to the end-user applications. It handles tasks such as network communication protocols, application-level data exchange, and user interface. It ensures that data is properly formatted and presented to the user.

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  • 29. 

    ATM je:

    • A.

      Integrisana mreža digitalnih servisa i može se koristiti samo za telefoniju

    • B.

      Mreža koja omogućava asihroni prenos govora, podataka i video zapisa

    • C.

      Integrisana mreža digitalnih servisa i može se koristiti za računarske mreže i telefoniju

    • D.

      Protokol u WAN mrežama

    Correct Answer
    B. Mreža koja omogućava asihroni prenos govora, podataka i video zapisa
    Explanation
    The correct answer is "Mreža koja omogućava asihroni prenos govora, podataka i video zapisa." This answer states that ATM is a network that allows for asynchronous transmission of voice, data, and video. This means that ATM can handle various types of information and transmit them at different speeds, making it a versatile network for different types of communication.

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  • 30. 

    Kod štafetnog prenosa ramova:

    • A.

      Korekcije grešaka i kontrola protoka se izvršava na strani predajnika

    • B.

      Korekcije grešaka i kontrola protoka se izvršava u čvorovima mreže

    • C.

      Korekcije grešaka i kontrola protoka se izvršava i na strani predajnika, prijemnika i u čvorovima mreže

    • D.

      Korekcije grešaka i kontrola protoka se izvršava na strani prijemnika

    Correct Answer
    D. Korekcije grešaka i kontrola protoka se izvršava na strani prijemnika
    Explanation
    The correct answer is that error correction and flow control are performed on the receiver side.

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  • 31. 

    Ukalupljivanje (enkapsulacija) je pojam koji se odnosi na:

    • A.

      Dodavanje zaglavlja na podatak

    • B.

      Dodavanje CRC – a

    • C.

      Dodavanje FCS – a

    • D.

      Povezivanje više paketa podataka

    Correct Answer
    A. Dodavanje zaglavlja na podatak
    Explanation
    Ukalupljivanje (enkapsulacija) je pojam koji se odnosi na dodavanje zaglavlja na podatak. Ukalupljivanje je proces dodavanja kontrolnih informacija (zaglavlja) na početak podataka kako bi se osigurala ispravnost i integritet podataka prilikom prenosa. Zaglavlje sadrži informacije o izvoru i odredištu podataka, kao i druge kontrolne informacije koje su potrebne za pravilno usmjeravanje i obradu podataka. Dodavanje CRC-a i FCS-a se odnosi na dodavanje kontrolnih suma na podatak kako bi se detektovali eventualni gresi u prenosu, ali to nije specifično za koncept ukalupljivanja.

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  • 32. 

    SAP je skraćenica za:

    • A.

      Software Application Protocol

    • B.

      Sampling Access Protocol

    • C.

      Service Access Point

    • D.

      Software Addition Protocol

    Correct Answer
    C. Service Access Point
    Explanation
    SAP is an abbreviation for Service Access Point. A Service Access Point is a point in a network where services can be accessed. It acts as an interface between the user and the network, allowing the user to connect to various services provided by the network. In the context of the question, SAP is the correct answer as it best represents the meaning of the abbreviation in relation to network services.

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  • 33. 

    Koji su to viši slojevi u OSI referentnom modelu?

    • A.

      Fizički sloj i sloj veze

    • B.

      Transportni sloj i svi slojevi iznad njega

    • C.

      Sloj veze i mrežni sloj

    • D.

      Mrežni sloj i svi slojevi iznad njega

    Correct Answer
    B. Transportni sloj i svi slojevi iznad njega
    Explanation
    The correct answer is "Transportni sloj i svi slojevi iznad njega" which translates to "Transport layer and all layers above it" in English. This answer is correct because in the OSI reference model, the transport layer is responsible for end-to-end communication and ensures the reliable transmission of data between network devices. All layers above the transport layer, including the session, presentation, and application layers, build on top of it to provide various services and functionalities.

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  • 34. 

    Sloj mreže je u OSI modelu:

    • A.

      Peti sloj

    • B.

      Šesti sloj

    • C.

      Drugi sloj

    • D.

      Treći sloj

    Correct Answer
    D. Treći sloj
    Explanation
    The correct answer is "Treći sloj" which translates to "Third layer" in English. This suggests that the question is asking about the layer of the network in the OSI model. The OSI model is a conceptual framework used to understand how different network protocols and technologies interact. It consists of seven layers, with the third layer being the Network layer. This layer is responsible for addressing, routing, and delivering data packets across different networks. Therefore, the correct answer is "Treći sloj" or "Third layer" in English.

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  • 35. 

    PDU je skraćenica za:

    • A.

      Protocol Data Unit

    • B.

      Paging Domain Unit

    • C.

      Protocol Digital Uplink

    • D.

      Partial Domain Unit

    Correct Answer
    A. Protocol Data Unit
    Explanation
    PDU stands for Protocol Data Unit, which refers to a specific unit of data that is transmitted over a network. It is used to encapsulate data at the transport layer of the network protocol stack. PDU contains both the data being transmitted and the necessary control information for its delivery. This term is commonly used in networking and telecommunications to describe the smallest unit of data that can be transmitted and received between devices in a network.

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  • 36. 

    Pravila o konverzaciji N slojeva na različitim mašinama se naziva:

    • A.

      Servis N – tog sloja

    • B.

      Protokol N – tog sloja

    • C.

      Signalizacija N – tog sloja

    • D.

      Sinhronizacija N – tog sloja

    Correct Answer
    B. Protokol N – tog sloja
    Explanation
    The given answer suggests that the correct term for the rules about communication in N layers on different machines is "Protokol N – tog sloja" which translates to "Protocol of the Nth layer". This implies that the rules and procedures for communication in the Nth layer of the network are referred to as the protocol.

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  • 37. 

    Ćelija kod ATM sistema je veličine:

    • A.

      48 bajtova

    • B.

      53 bajta

    • C.

      62 bajta

    • D.

      168 bajtova

    Correct Answer
    B. 53 bajta
    Explanation
    The size of a cell in an ATM system is 53 bytes.

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  • 38. 

    Nabroj tri mrežne arhitekture:

    • A.

      OSI, TCP/IP, X.25

    • B.

      Zvezda, prsten i magistrala

    • C.

      OSI, TCP/IP, X.25

    • D.

      Token bus, Token ring, CSMA/CD

    Correct Answer
    C. OSI, TCP/IP, X.25
    Explanation
    The correct answer is OSI, TCP/IP, X.25. These are three different network architectures. OSI (Open Systems Interconnection) is a conceptual model that standardizes the functions of a communication system into seven different layers. TCP/IP (Transmission Control Protocol/Internet Protocol) is a suite of protocols that enables communication between devices on the internet. X.25 is a packet-switched network protocol that was widely used in the past for remote access and virtual private networks.

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  • 39. 

    OSI referentni model je:

    • A.

      Podloga za definisanje standarda za povezivanje heterogenih mreža

    • B.

      Sistem za kodiranje podataka

    • C.

      Sistem za analizu podataka

    • D.

      Sistem za dodelu prioriteta podacima

    Correct Answer
    A. Podloga za definisanje standarda za povezivanje heterogenih mreža
    Explanation
    The OSI referentni model je podloga za definisanje standarda za povezivanje heterogenih mreža. This means that the OSI reference model serves as a foundation for defining standards for connecting different types of networks. It provides a framework that allows different network protocols and technologies to work together seamlessly, ensuring interoperability between different network devices and systems. The model consists of seven layers, each with its own specific functions and responsibilities, which helps in organizing and understanding the complex process of network communication.

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  • 40. 

    Mrežni sloj OSI modela:

    • A.

      Bavi se logičkim adresiranjem i rutiranjem paketa po mreži

    • B.

      Zadužen je za kontrolu toka i detekciju greške

    • C.

      Bavi se prenosom bitova između dva uređaja

    • D.

      Obezbeđuje dijalog izmedju aplikacija

    Correct Answer
    A. Bavi se logičkim adresiranjem i rutiranjem paketa po mreži
    Explanation
    The correct answer is "Bavi se logičkim adresiranjem i rutiranjem paketa po mreži" because the network layer of the OSI model is responsible for logical addressing and routing packets across the network. This layer ensures that packets are correctly addressed and routed to their intended destinations, regardless of the underlying physical network topology. It also handles tasks such as fragmentation and reassembly of packets, error detection, and congestion control.

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  • 41. 

    X.25 je standard za:

    • A.

      Linijsku komutaciju

    • B.

      Paketsku komutaciju

    • C.

      Komutaciju ćelija

    • D.

      Komutaciju bajtova

    Correct Answer
    B. Paketsku komutaciju
    Explanation
    X.25 je standard za paketsku komutaciju. Ovaj standard se koristi za prenos podataka u mrežama, gde se podaci dele na pakete pre slanja i svaki paket se zasebno rutira do odredišta. X.25 omogućava efikasan i pouzdan prenos podataka kroz mrežu, koristeći tehniku paketske komutacije.

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  • 42. 

    Koji od navedenih standarda se odnosi na fizički sloj?

    • A.

      TCP/IP

    • B.

      OSI

    • C.

      RS-232

    • D.

      IPX

    Correct Answer
    C. RS-232
    Explanation
    RS-232 is the correct answer because it is a standard that defines the electrical, mechanical, and functional characteristics of serial communication between computers and other devices. It specifically refers to the physical layer of communication, which involves the transmission of raw data bits over a physical medium. TCP/IP and OSI are network protocol models, while IPX is a network protocol suite.

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  • 43. 

    Koji sloj obezbeđuje dijalog između aplikacija:

    • A.

      Mrežni sloj

    • B.

      Fizički sloj

    • C.

      Transportni sloj

    • D.

      Sloj sesije

    Correct Answer
    D. Sloj sesije
    Explanation
    The session layer provides the dialogue between applications. It establishes, maintains, and terminates connections between two communicating applications. This layer manages the session and ensures that data is transferred correctly and efficiently. It also handles synchronization, checkpointing, and recovery of the session if any interruptions occur.

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  • 44. 

    Sedmi sloj OSI referentnog modela je:

    • A.

      Aplikacioni sloj

    • B.

      Transportni sloj

    • C.

      Mrežni sloj

    • D.

      Fizički sloj

    Correct Answer
    A. Aplikacioni sloj
    Explanation
    The correct answer is the Application layer. The OSI reference model consists of seven layers, with the Application layer being the topmost layer. This layer is responsible for providing services to the end-user applications, such as email, web browsing, and file transfer. It interacts directly with the user and is responsible for the communication between the application and the lower layers of the network stack.

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  • 45. 

    ICI je skraćenica od:

    • A.

      Integration Control Information

    • B.

      Interface Circuit Information

    • C.

      Interface Control Information

    • D.

      Integration Circuit Information

    Correct Answer
    C. Interface Control Information
    Explanation
    The correct answer is "Interface Control Information". ICI is an acronym that stands for Interface Control Information. This term refers to the information or data that is used to control the interface between two systems or components. It includes specifications, protocols, and other details that are necessary for the proper functioning and communication between the interfaces.

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  • 46. 

    Drugi sloj OSI referentnog modela je:

    • A.

      Sloj veze

    • B.

      Transportni sloj

    • C.

      Mrežni sloj

    • D.

      Fizički sloj

    Correct Answer
    A. Sloj veze
    Explanation
    The second layer of the OSI reference model is the Data Link layer. This layer is responsible for the reliable transfer of data between adjacent network nodes. It provides error detection and correction, as well as flow control mechanisms. The Data Link layer also handles the physical addressing of devices on the network and manages access to the network medium.

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  • 47. 

    Koordinacijom dijaloga bavi se:

    • A.

      Transportni sloj

    • B.

      Sloj sesije

    • C.

      Aplikacioni sloj

    • D.

      Prezentacioni sloj

    Correct Answer
    B. Sloj sesije
    Explanation
    The correct answer is "Sloj sesije" which translates to "Session layer" in English. The session layer is responsible for establishing, managing, and terminating sessions between applications. It ensures that data exchange between the applications is reliable and error-free. This layer handles tasks such as session establishment, synchronization, and checkpointing. It also manages the session's duration and ensures that the data is delivered in the correct order.

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  • 48. 

    Fizički sloj OSI modela:

    • A.

      Zadužen je za kontrolu toka i detekciju grešaka

    • B.

      Bavi se logičkim adresiranjem i rutiranjem paketa po mreži

    • C.

      Bavi se prenosom bitova između dva uređaja

    • D.

      Određuje koji tip veze je potrebno uspostaviti i po potrebi vrši segmentaciju podataka u datagrame

    Correct Answer
    C. Bavi se prenosom bitova između dva uređaja
    Explanation
    The physical layer of the OSI model is responsible for the transmission of bits between two devices. It deals with the actual physical connection and transfer of data over the network. This layer determines the type of connection that needs to be established and, if necessary, performs data segmentation into datagrams. It is also responsible for flow control and error detection.

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  • 49. 

    Virtuelno kolo se uspostavlja kod:

    • A.

      Servisa sa uspostavom veze

    • B.

      Datagram servisa

    • C.

      Nikada se ne uspostavlja

    • D.

      Kod prenosa podataka

    Correct Answer
    A. Servisa sa uspostavom veze
    Explanation
    The correct answer is "Servisa sa uspostavom veze." This means that a virtual circuit is established during the connection setup of a service. In a virtual circuit, a dedicated path is created between the sender and receiver before data transmission, ensuring a reliable and ordered delivery of data packets. This is in contrast to datagram services, where each packet is treated independently and may take different routes to reach the destination. The virtual circuit provides a more predictable and controlled communication channel.

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  • 50. 

    Parnjak celine (peer) su:

    • A.

      Bilo koja dva sloja na jednoj mašini

    • B.

      Prva dva sloja na jednoj mašini

    • C.

      Isti slojevi na različitim mašinama

    • D.

      Susedni slojevi na istim mašinama

    Correct Answer
    C. Isti slojevi na različitim mašinama
    Explanation
    The correct answer is "Isti slojevi na različitim mašinama" which translates to "Same layers on different machines" in English. This means that peer-to-peer (P2P) networks consist of the same layers on different machines. In a P2P network, each machine or node functions as both a client and a server, allowing for the sharing of resources and information directly between the nodes without the need for a central server. This answer accurately describes the concept of P2P networks.

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