5. Why does TCP need three-way handshake, instead otwo-way, in connection setup?
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6. When is a lost TCP segment retransmitted?
7. What actors are considered in deciding the TCPwindow size?
8. How does the window grow in slow start and conges-tion avoidance?
9. Why are ast retransmit and ast recovery added toTCP? What major change does New Reno make?