Using 5 bit sequence numbers what is the maximum size ofof send and recieve window for the following protocols
1-stop and wait arq
2-go back n arq
3-selective repeat arq

1- Stop and wait protocol is also called as a one-bit sliding window protocol.    The maximum size of the sender and receiver window is 1.

2- The maximum sender window size in go-back n is (2^n)-1, n is the sequence number.  

                                                         =  2^5 -1

                                                         = 32-1

                                                         = 31

The maximum receiver window size is 1.

3- In selective repeat arq, the maximum window size is (2^n)/2 where n is sequence number, the sequence number here is 5.

                                                      so, 2^5/2

                                                         = 32/2

                                                         = 16  

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