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Computer Science :: Computer Networking

  1. To connect a computer with a device in the same room, you might be likely to use

  2. A.

     a coaxial cable

    B.

     a dedicated line

    C.

     a ground station

    D.

     All of the above

    E.

     None of the above


  3. Internet-like networks within an enterprise.

  4. A.

     Intranets

    B.

     Switching alternating

    C.

     Inter organizational networks

    D.

     Extranets


  5. How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communications with the host?

  6. A.

     16 - bits

    B.

     32 - bits

    C.

     48 - bits

    D.

     64 - bits

    E.

     None of the above


  7. With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?

  8. A.

     192

    B.

     224

    C.

     240

    D.

     248

    E.

     252


  9. Which of the following types of channels moves data relatively slowly?

  10. A.

     wideband channel

    B.

     voiceband channel

    C.

     narrowband channel

    D.

     broadband channel

    E.

     None of the above


  11. Which of the following is required to communicate between two computers?

  12. A.

     communications software

    B.

     protocol

    C.

     communications hardware

    D.

     access to transmission medium

    E.

     All of the above


  13. Which of the following does not allow multiple users or devices to share one communications line?

  14. A.

     doubleplexer

    B.

     multipplexer

    C.

     concentrator

    D.

     controller

    E.

     None of the above


  15. The geostationary satellite used for communication systems

  16. A.

     rotates with the earth

    B.

     remains stationary relative to the earth

    C.

     is positioned over equator

    D.

     All of the above

    E.

     None of the above


  17. Telecommunication networks frequently interconnect an organization with its customers and suppliers. Select the best fit for answer:

  18. A.

     Bandwidth alternatives

    B.

     Switching alternating

    C.

     Inter organizational networks

    D.

     Extranets

    E.

     None of the above


  19. The packets switching concept was first proposed

  20. A.

     in the late 1980s for the Defense Ministry of US.

    B.

     in the early 1960s for military communication systems, mainly to handle speech

    C.

     in the late 1950s for Defense Ministry of US

    D.

     All of the above

    E.

     None of the above