The TCP round-trip time is initially 25 msec and acknowledgments(Ack) comes in after 20 msec and 21 msec respectively. Find the new estimated round-trip time if α = 3/4.
(A) 23 msec
(B) 23.25
(C) 22.5 msec
(D) None of these.


Answer: (C)

Explanation:
New ERTT = 22.5 msec.
So, option (C) is correct.

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