Question: Explain ( i ) how the TCP stack uses SEQuence numbers and ACKnowledgements in a reliable bytestream transmission, ( ii ) how Selective ACKnowledgements help

Explain (i) how the TCP stack uses SEQuence numbers and ACKnowledgements in a reliable bytestream transmission, (ii) how Selective ACKnowledgements help enhance the performance of the transmission, and (iii) why does the sequence numbers start from a random value?

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