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Data Communication and Networking MCQs

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  • 1. Protocols are
  • filter_dramaExplanation
    Answer is : A
    None.
  • 2. The method of communication in which transmission takes place in both directions, but only one direction at a time is called
  • filter_dramaExplanation
    Answer is : D
    None.
  • 3. Error detection at the data link level is achieved by
  • filter_dramaExplanation
    Answer is : B
    None.
  • 4. Which of the following is a wrong example of network layer?
  • filter_dramaExplanation
    Answer is : D
    None.
  • 5. The topology with highest reliability is:
  • filter_dramaExplanation
    Answer is : D
    Mess Topology is a network setup where each computer and network device is interconnected with one another, allowing for most transmissions to be distributed, even if one of the connections go down. This topology is not commonly used for most computer networks as it is difficult and expensive to have redundant connection to every computer. However, this topology is commonly used for wireless networks.
  • 6. "BAUD" rate means
  • filter_dramaExplanation
    Answer is : C
    None.
  • 7. Start and stop bits are used in serial communication for
  • filter_dramaExplanation
    Answer is : C
    None.
  • 8. Unmodulated signal coming from a transmitter is know as
  • filter_dramaExplanation
    Answer is : B
    None.
  • 9. How many Character per sec(7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?
  • filter_dramaExplanation
    Answer is : A
    Start and stop bits are not needed in synchronous transfer of data. So, it is 2400/8=300.
  • 10. Which one of the following network uses dynamic or adaptive routing?
  • filter_dramaExplanation
    Answer is : B
    None.
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