GATE | GATE-CS-2005 | Question 25

The maximum window size for data transmission using the selective reject protocol with n-bit frame sequence numbers is:
(A) 2^n
(B) 2^(n-1)
(C) 2^n – 1
(D) 2^(n-2)

Answer: (B)
Explanation: In Selective Reject (or Selective Repeat), maximum size of window must be half of the maximum sequence number.
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