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In Token Ring, when a frame reaches its destination station, then

  • A.message is copied
  • B.four bits in the packet are changed
  • C.message is taken of the ring and replaced by the token
  • D.both (a) and (b)

Answer: D

Correct answer: both (a) and (b)

The destination does not remove the frame; it copies the data and sets the address-recognised and frame-copied bits in the frame status field - four bits in all. The frame continues round to the sender, which removes it, and that is how the sender learns the frame was received.

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