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Question

Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost ?

a.

1/ (1 - F)

b.

P I (K + 1)

c.

K I (K - P)

d.

KIK (1 + F)

Answer: (a).1/ (1 - F)

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Q. Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a...

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