Computer Networks MCQs with answers Page - 7

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A

Admin • 832.27K Points
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Q. Which one of the following task is not done by data link layer?

  • (A) framing
  • (B) error control
  • (C) flow control
  • (D) channel coding

A

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Q. Which sublayer of the data link layer performs data link functions that depend upon the type of medium?

  • (A) logical link control sublayer
  • (B) media access control sublayer
  • (C) network interface control sublayer
  • (D) none of the mentioned

A

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Coach

Q. Header of a frame generally contains

  • (A) synchronization bytes
  • (B) addresses
  • (C) frame identifier
  • (D) all of the mentioned

A

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Q. Automatic repeat request error management mechanism is provided by

  • (A) logical link control sublayer
  • (B) media access control sublayer
  • (C) network interface control sublayer
  • (D) none of the mentioned

A

Admin • 832.27K Points
Coach

Q. When 2 or more bits in a data unit has been changed during the transmission, the error is called

  • (A) random error
  • (B) burst error
  • (C) inverted error
  • (D) none of the mentioned

A

Admin • 832.27K Points
Coach

Q. CRC stands for

  • (A) cyclic redundancy check
  • (B) code repeat check
  • (C) code redundancy check
  • (D) cyclic repeat check

A

Admin • 832.27K Points
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Q. Which one of the following is a data link protocol?

  • (A) ethernet
  • (B) point to point protocol
  • (C) hdlc
  • (D) all of the mentioned

A

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Q. Which one of the following is the multiple access protocol for channel access control?

  • (A) csma/cd
  • (B) csma/ca
  • (C) both (a) and (b)
  • (D) none of the mentioned

A

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Q. The technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called

  • (A) piggybacking
  • (B) cyclic redundancy check
  • (C) fletcher’s checksum
  • (D) none of the mentioned

A

Admin • 832.27K Points
Coach

Q. The network layer concerns with

  • (A) bits
  • (B) frames
  • (C) packets
  • (D) none of the mentioned

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