Consider the following figure showing the TCP window size as a function of time. Assuming TCP Reno is the protocol experiencing the behavior shown in the figure, answer the following questions. In all cases, you should provide a short discussion justifying your answer. 1. Identify the intervals of time when TCP slow start is operating. 2. Identify the intervals of time when TCP congestion avoidance is operating. 3. After the 16th transmission round, is segment loss detected by a triple duplicate ACK or by a timeout 4. After the 22nd transmission round, is segment loss detected by a triple duplicate ACK or by a timeout? 5. What is the initial value of ssthresh at the first transmission round? What is the value of ssthresh at the 18th transmission round? 6. What is the value of ssthresh at the 24 th transmission round? During what transmission round is the70th segment sent? Assuming a packet loss is detected after the 26 th round by the receipt of a triple duplicate ACK, what will be the values of the congestion window size and of ssthresh? 7. Suppose TCP Tahoe is used (instead of TCP Reno), and assume that triple duplicate ACK s are received at the 16th round. What are the ssthresh and the congestion window size at the 19 th round? 8. Again suppose TCP Tahoe is used, and there is a timeout event at 22 nd round. How many packets have been sent out from 17 th round till 22 nd round, inclusive