Multiple choice

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

  1. 2n

  2. 2n−1

  3. 2n − 1

  4. 2n−2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

n bit frame sequence nos are used so possible are 2n nos. But sending & receiving window together so $\dfrac{2^n}{2} = 2^{n-1}$

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