PROBLEM $1.$ Consider the figure below. Assuming TCP Reno is the protocol experiencing the behavior shown, answer the following questions. In all cases, you should provide a short discussion justifying your answer.A$)$ Identify the intervals of time when TCP fast recovery is operating.B$)$ Which segment is transmitted at round $23?$C$)$ What is the value of ssthresh at the $24$th transmission round?D$)$ Assuming a packet loss is detected after the $26$th round by the receipt of triple duplicate ACKs, what will be the values of the congestion window size and of ssthresh at round $27?$PROBLEM $1.$ Consider the figure below. Assuming TCP Reno is the protocol experiencing the behavior shown, answer the following questions. In all cases, you should provide a short discussion justifying your answer.

Figure $3\mathrm{.}58$ TCP window size as a function of time

A$)$ Identify the intervals of time when TCP fast recovery is operating.

B$)$ Which segment is transmitted at round $23?$ C$)$ What is the value of ssthresh at the $24$th transmission round?

D$)$ Assuming a packet loss is detected after the $26$th round by the receipt of triple duplicate ACKs, what will be the values of the congestion window size and of ssthresh at round $27?$