Question

The maximum window size for data transmission using the selective reject protocol with n-bit frame sequence numbers is

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

Answer 1

The correct option is A $2^{n-1}$

In case of the selective Reject Protocol, the maximum window size
$=\frac{2^n}{2}=2^{n-1}$
In the case of Selective Reject the window size will be half.