Gateforum Correspondence Course ( Page No. 84, Question No. 6)

Question

In sliding window protocol the receiver window size is at most

• A. $2^n$
• B. $2^n+1$
• C. $2^n-1$
• D. 1

I think the receiver window is maximum in SR protocol which is 2^(n-1) not 2^n - 1. Is it correct ??

Comments

Right...

Answer 1

as damaged or lost. In this protocol, both sender and receiver maintain a window of acceptable sequence numbers. The sender’s window size starts out at 0 and grows to some predefined maximum, MAXSEQ. The receiver’s window, in contrast, is always fixed in size and equal to MAXSEQ. which is 2^(n-1)