Practice test

Data communication and networking - Test Set 3

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    ___________ is an alternate name for the completely interconnected network topology.
    1. Mesh
    2. Tree
    3. Ring
    4. Star
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  2. Question 2

    Which is the highest reliable topology?
    1. Star topology
    2. Mesh topology
    3. Tree topology
    4. Bus topology
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  3. Question 3

    Which of the following network topologies is most suitable for large-scale networks?
    1. Ring
    2. Mesh
    3. Bus
    4. Star
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  4. Question 4

    Which topology provides the highest fault tolerance?
    1. Bus
    2. Mesh
    3. Star
    4. Ring
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  5. Question 5

    Which of the following best describes a hybrid topology?
    1. A combination of two or more topologies
    2. A network with only bus topology
    3. A ring topology network
    4. A single-point network topology
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  6. Question 6

    Find out the OSI layer, which performs token management.
    1. Network layer
    2. Transport layer
    3. Presentation layer
    4. Session layer
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  7. Question 7

    In Open System Interconnection (OSI) model of computer networks, switches work at _________ layer and consider data as __________ not as signals.
    1. application, protocol
    2. data link, frames
    3. physical, bits
    4. network, data packets
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  8. Question 8

    Encryption and decryption are the functions of
    1. presentation layer
    2. transport layer
    3. session layer
    4. All of these
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  9. Question 9

    Which of the following is the fourth layer of the OSI model?
    1. Application layer
    2. Transport layer
    3. Data link layer
    4. Session layer
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  10. Question 10

    In OSI network architecture, the routing is performed by which of the following layers?
    1. Network layer
    2. Session layer
    3. Data link layer
    4. Transport layer
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  11. Question 11

    Which of the following protocols working on the transport layer provides a connectionless service between hosts?
    1. ARP
    2. IP
    3. TCP
    4. UDP
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  12. Question 12

    In the following list of devices, which of the following devices is used at the network layer?
    1. Router
    2. Repeaters
    3. Switch
    4. Application gateway
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  13. Question 13

    Switches work on which OSI layer?
    1. Transport layer
    2. Data link layer
    3. Network layer
    4. Physical layer
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  14. Question 14

    Which of the following layers of the open-system interconnection model lies between the presentation layer and the transport layer in a computer system?
    1. Layer 2
    2. Layer 3
    3. Layer 5
    4. Layer 7
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  15. Question 15

    Which networking device operates at layer 2 of the OSI model and forwards data based on MAC addresses?
    1. Switch
    2. Router
    3. Hub
    4. TCP/IP Model
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  16. Question 16

    In IT networking, which of the following devices is used in the physical layer?
    1. Transport gateway
    2. Repeater
    3. Bridge
    4. Router
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  17. Question 17

    Which of the following is the main function of the data link layer?
    1. Encryption and decryption
    2. Segmentation of data
    3. Error detection and correction
    4. Routing of packets
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  18. Question 18

    TCP/IP …… layer corresponds to the three layers of the OSI model.
    1. application
    2. session
    3. presentation
    4. transport
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  19. Question 19

    The standard suit of protocols used by the Internet, Intranets, extranets, and some other networks.
    1. Open system
    2. TCP/IP
    3. Internet work processor
    4. Protocol
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  20. Question 20

    What does TCP stand for with respect to computer networks?
    1. Transfer Call Plan
    2. Transfer Control Process
    3. Transmission Call Protoco
    4. Transmission Control Protocol
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