Question Bank - Computer Networks

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Four bits are used for packed sequences numbering is a sliding window protocol used in a computer network. What is the maximum window size?

A.
4
B.
8
C.
15
D.
16

Solution:

Concept:A sliding window protocol is a feature of packet-based data transmission protocols.Sliding window protocols are used where reliable in-order delivery of packets is required.Go-Back-N is the sliding window protocol. In this maximum window size is possibleDataIn GBN,Number of bits = n = 4Formula:window size of sender + window size of receiver = Total size? Ws +Wr = 2n CalculationWr = 1Ws= 2n “ 1? Ws= 24 “ 1 = 15Maximum window size possible is 15

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