Question: 1. Why TCP uses a 3-way connection establishment process rather than simple connection request and response (2-way protocols)? 2. Assume TCP congestion control based on

1. Why TCP uses a 3-way connection establishment process rather than simple connection request and response (2-way protocols)?

2. Assume TCP congestion control based on Reno/Tahoe protocol. Initial ssthreshold = 32.

a. First segment loss occurs at the 7th transmission. Loss is indicated by timeout. What is the current congestion window (CWND) and ssthreshold before the 8th transmission starts?

b. After 3 more transmissions (8th, 9th and 10th) at the 10th transmission, segment loss happens. This time, loss is indicated by 3-DUPACKs. What is the current congestion window (CWND) and ssthreshold before the 11th transmission starts?

c. After this 2 more transmissions happen (11th and 12th) without any loss and the transmission process is completed. What will be the current congestion window (CWND) and ssthreshold value after the 12th transmission?

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