Consider a token ring network with a length of 2 km having 10 stations including a monitoring station. The propagation speed of the signal is 2 108 m/s and the token transmission time is ignored. If each station is allowed to hold the token for 2 msec, the minimum time for which the monitoring station should wait (in m sec)before assuming that the token is lost is _______.

Consider a token ring network with a length of 2 km having 10 stations

1.	Consider a token ring network with a length of 2 km having 10 stations including a monitoring station. The propagation speed of the signal is 2 10⁸ m/s and the token transmission time is ignored. If each station is allowed to hold the token for 2 msec, the minimum time for which the monitoring station should wait (in m sec)before assuming that the token is lost is _______.
A.	28 to 30 sec.
B.	21 to 30 sec.
C.	20 to 24 sec.
D.	38 to 40 sec.
Answer» B. 21 to 30 sec.

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