Multiple choice

Which of the following is/are FDDI MAC protocol timer(s)?

  1. Token rotation timers

  2. Valid transmission timer

  3. Token holding timer

  4. All of the above
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D Correct answer
Explanation

FDDI MAC protocol uses three timers. Token holding timer - It determines duration for which a station can transmit after acquiring token.  Token rotation timer - It restarts after every token is seen. Valid transmission timer - It is used to time out and recover from certain transient ring errors.

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