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  1. The number of cross point needed for 10 lines in a cross point switch which is full duplex in nature and there are no self connection is

  2. A.

     100

    B.

     45

    C.

     50

    D.

     90

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  3. A terminal multiplexer has six 1200 bps terminals and 'n' 300bps terminals connected to it. The outgoing line is 9600bps. What is the maximum value of n?

  4. A.

     4

    B.

     16

    C.

     8

    D.

     28

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  5. Maximum data rate of a channel for a noiseless 3-kHz binary channel is

  6. A.

     3000bps

    B.

     6000 bps

    C.

     1500 bps

    D.

     None of these

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  7. The ________ measures the number of lost or garbled messages as a fraction of the total sent in the sampling period.

  8. A.

     Residual Error Rate.

    B.

     Transfer Failure Probability.

    C.

     Connection release failure probability.

    D.

     Connection establish.

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  9. In session layer, during data transfer, the data stream responsible for the "control" purpose (i.e control of the session layer itself) is

  10. A.

     Regular Data

    B.

     Typed data

    C.

     Capability Data

    D.

     Expedited Data

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  11. A high speed communication equipment typically would not be needed for

  12. A.

     E-mail

    B.

     Transferring large volume of data

    C.

     Supporting communication between nodes in a LAN

    D.

     All of these

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  13. Which of the following ISO level is more closely related to the physical communications facilities?

  14. A.

     Application

    B.

     Session

    C.

     Networking

    D.

     Data Link

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  15. which of the following is not a field in the Ethernet Message packet?

  16. A.

     Type

    B.

     Data

    C.

     Pin-code

    D.

     Address

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  17. The Network topology that supports bi-directional links between each possible node is

  18. A.

     Ring

    B.

     Star

    C.

     Tree

    D.

     Mesh

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  19. In a broad Sense, a railway track is an example of

  20. A.

     Simplex

    B.

     Half Duplex

    C.

     Full Duplex

    D.

     All of these

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