l lupletn 3. (32 marks) The behavior of a TCP protocol can be described as follows. that asthreshold is initially set as 16 and TCP starts a cwnd-1 MSS. TCP has a triple duplicated ACK when cun a timeout when cvnd reaches 16. Suppose TCP Reno is used and for fast r ssthreshold/2. t Trans mission round 1 with initial d reaches 20, and then TCP has cund- (a) (12 marks) What is congestion window size (c (b) (12 marks) What is congestion window size (cvnd) during transmission round 12? (c) (8 marks) Suppose TCP Tahoe is used instead of TCP Reno, what is congestion window vnd) during transmission round 6? size (cund) during transmission round 12? 20 16 12 10 , 0 2468 10 12 14 16 1 Transmission round Figure 1: For your convenience for solving Problem 3