Practice test

Data communication and networking - Test Set 2

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

    A ______________ is an electronic device that receives a weak signal and regenerates it.
    1. hub
    2. repeater
    3. router
    4. switch
    View explanation

    Sign In to See Explanations. Sign Up Here

  2. Question 2

    The network device that converts digital signals into analog signals and can be connected through a telephone is called _______________.
    1. modem
    2. router
    3. hotspot
    4. bridge
    View explanation

    Sign In to See Explanations. Sign Up Here

  3. Question 3

    Which of the following is used to connect multiple computers in a Local Area Network (LAN)?
    1. Bridge
    2. Switch
    3. NIC
    4. Firewall
    View explanation

    Sign In to See Explanations. Sign Up Here

  4. Question 4

    Which device is used to connect a computer to a network?
    1. Router
    2. Modem
    3. NIC
    4. All of these
    View explanation

    Sign In to See Explanations. Sign Up Here

  5. Question 5

    _____________ serves as the entry and exit point of a network, as all data coming in or going out of a network must first pass through it in order to use routing paths.
    1. Gateway
    2. Repeater
    3. Bridge
    4. Router
    View explanation

    Sign In to See Explanations. Sign Up Here

  6. Question 6

    ____________ is also known as a protocol converter.
    1. Bridge
    2. Hub
    3. Switch
    4. Gateway
    View explanation

    Sign In to See Explanations. Sign Up Here

  7. Question 7

    _________ is a passage to connect two networks that may work on different networking models.
    1. Router
    2. Switch
    3. Gateway
    4. Hub
    View explanation

    Sign In to See Explanations. Sign Up Here

  8. Question 8

    A ______________ is a networking device that filters network traffic while connecting multiple computers or communicating devices.
    1. Repeater
    2. Distributor
    3. Switch
    4. Router
    View explanation

    Sign In to See Explanations. Sign Up Here

  9. Question 9

    In a ________ topology, all nodes are connected to a single communication line and share it for all their communication needs.
    1. completely connected
    2. ring
    3. star
    4. multi-access bus
    View explanation

    Sign In to See Explanations. Sign Up Here

  10. Question 10

    In a star network, how many lines are required for connecting N nodes to the host node?
    1. N
    2. (N/2)-1
    3. N/2
    4. N+1
    View explanation

    Sign In to See Explanations. Sign Up Here

  11. Question 11

    In which topology of computer networks, for n-nodes, n × (n-1)/2 physical links are required for connection?
    1. Ring topology
    2. Mesh topology
    3. Star topology
    4. Hybrid topology
    View explanation

    Sign In to See Explanations. Sign Up Here

  12. Question 12

    Which of the following refers to the layout arrangement of various devices in a network?
    1. Closed system
    2. Transmission mode
    3. Open system
    4. Network topology
    View explanation

    Sign In to See Explanations. Sign Up Here

  13. Question 13

    In a completely connected network, how many lines are required for connecting 6 nodes?
    1. 12
    2. 15
    3. 24
    4. 30
    View explanation

    Sign In to See Explanations. Sign Up Here

  14. Question 14

    In which of the following network topologies do the connected components make a closed loop?
    1. Tree topology
    2. Ring topology
    3. Star topology
    4. Bus topology
    View explanation

    Sign In to See Explanations. Sign Up Here

  15. Question 15

    Ethernet uses
    1. bus topology
    2. mesh topology
    3. ring topology
    4. All of these
    View explanation

    Sign In to See Explanations. Sign Up Here

  16. Question 16

    A small message in a network used to pass between one station to another is known as
    1. byte
    2. word
    3. ring
    4. token
    View explanation

    Sign In to See Explanations. Sign Up Here

  17. Question 17

    Which of the following is the most common type of network topology used in LANs?
    1. Star
    2. Bus
    3. Ring
    4. Mesh
    View explanation

    Sign In to See Explanations. Sign Up Here

  18. Question 18

    In star topology, all devices are connected to a central device by ______.
    1. hub only
    2. router
    3. hub or switch
    4. switch only
    View explanation

    Sign In to See Explanations. Sign Up Here

  19. Question 19

    In which topology, every node is connected to two other nodes?
    1. Star topology
    2. Ring topology
    3. Bus topology
    4. Mesh topology
    View explanation

    Sign In to See Explanations. Sign Up Here

  20. Question 20

    Which of the following is the network topology in which there are bi-directional links between each possible node?
    1. ring
    2. tree
    3. star
    4. mesh
    View explanation

    Sign In to See Explanations. Sign Up Here