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  1. Which network has connectivity range up to 10 meters?

  2. A.

     LAN

    B.

     PAN

    C.

     MAN

    D.

     WAN

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  3. What is Unicode?

  4. A.

     Represents symbol or characters used in any langua

    B.

     Only few languages are supported

    C.

     Supports only few characters

    D.

     Characters from A to Z

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  5. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of?

  6. A.

     WAN and LAN

    B.

     Hardware and software

    C.

     Full duplex and half duplex

    D.

     All of the above

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  7. Correct method for full duplex mode of communication is:

  8. A.

     Both stations can transmit and receive data at the

    B.

     One device can send other device can only accepts.

    C.

     One device sends and other device receives and vic

    D.

     None of these

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  9. Data communications system depends on four fundamental characteristics

  10. A.

     Receiver

    B.

     Sender

    C.

     Timeliness

    D.

     Medium

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  11. A data communications system has:

  12. A.

     4 components

    B.

     5 components

    C.

     6 components

    D.

     7 components

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  13. 00 represents a pixel that pixel is known as :

  14. A.

     Black pixel

    B.

     Light gray

    C.

     White pixel

    D.

     Dark gray pixel

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  15. Select correct type of line configuration:

  16. A.

     Multi-point

    B.

     Single point

    C.

     Link

    D.

     Dedicated point

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  17. Select the wrong data communication system component:

  18. A.

     Medium

    B.

     Protocol

    C.

     Receiver

    D.

     Transits

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  19. Time required for a message to travel from one device to another is known as:

  20. A.

     Transit time

    B.

     Dialogue time

    C.

     Response time

    D.

     Wait time

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