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Computer Science :: Computer Networking

  1. If one link fails, only that link is affected. All other links remain active. Which topology does this?

  2. A.

     Mesh topology

    B.

     Star topology

    C.

     Bus topology

    D.

     Physical topology


  3. OSI model means:

  4. A.

     Open systems interconnection

    B.

     Operating system interconnection

    C.

     Open source interconnection

    D.

     Operating source interconnection


  5. Select the correct cable that transport signals in the form of light:

  6. A.

     Twisted-Pair cable

    B.

     Fiber optic cable

    C.

     Coaxial Cable

    D.

     Shielded Twisted Pair cable


  7. Twisted pair wires, coaxial cable, optical fiber cables are the examples of:

  8. A.

     Wired Media

    B.

     Wireless Media

    C.

     Both A & B

    D.

     None of these


  9. Which of the followings is used in communications is referred to as unshielded twisted-pair (UTP)?

  10. A.

     Coaxial cable

    B.

     Fiber-optic cable

    C.

     Twisted-pair cable

    D.

     None of these


  11. What is Cladding?

  12. A.

     Cables with shield

    B.

     Coxial Cable

    C.

     A typical optical fiber consists of a very narrow

    D.

     None of these


  13. Which network is a cross between circuits switched network and a data-gram network?

  14. A.

     Circuit-switched network

    B.

     Virtual-circuit network

    C.

     Virtual-circuit identifier

    D.

     None of these


  15. Select the cable that uses copper conductor, accept and transport signals in the form of electric current?

  16. A.

     Fiber-optic cable

    B.

     Metallic cable

    C.

     Twisted pair cable

    D.

     All of the above


  17. Number of Unguided Media is:

  18. A.

     6

    B.

     5

    C.

     4

    D.

     3


  19. Switching at the network layer in the Internet uses the datagram approach to:

  20. A.

     Message switching

    B.

     Circuit switching

    C.

     IP switching

    D.

     Packet switching