Question: For this question, the timing is presented in the format of hr : min : sec. a. (6%) TCP sends a segment at 1:3:12.3. It

For this question, the timing is presented in the format of hr : min : sec. a. (6%) TCP sends a segment at 1:3:12.3. It receives the acknowledgement at 1:3:14.1. What are the new values for the EstimatedRTT and DevRTT if the previous EstimatedRTT and DevRTT were 2.3 seconds and 0.8 seconds respectively? Assume that the smoothing factors ALPHA (for EstimatedRTT) and BETA (for DevRTT) are 0.2 and 0.15, respectively.

b. (4%) Continue with part a. TCP sends the next segment at 1:3:16.4. It does not receive an acknowledgement. When does TCP retransmit the segment? What is the timeout value for this retransmission?

c. (3%) Continue with part b. After the retransmission, TCP receives an acknowledgement at 1:3:25.3. TCP immediately sends a new segment X at 1:3:25.7 but cannot receive the acknowledgment before the timeout. TCP retransmits segment X again and receives the ACK by 1:3:40.5. After that, at 1:3:41.03, TCP sends another new segment Y, what is the TCP retransmission timeout value for segment Y?

d. (6%) Continue with part c. TCP receives an acknowledgement for segment Y at 1:3:43.1, then TCP sends another new segment Z immediately, what is the TCP retransmission timeout value for segment Z?

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