Assume that the timeout values for all three protocols are sufficiently long such that five consecutive data segments and their corresponding ACKs can be received $($if not lost in the channel$)$ by the receiving host $($Host B$)$ and the sending host $($Host A$)$ respectively.

Suppose Host A sends five data segments to Host B$,$ and the second segment $($sent from A$)$ is lost. In the end, all five data segments have been correctly received by Host B$.$

How many segments has Host A sent in total and how many ACKs has Host B sent in total? What are their sequence numbers?

If the timeout values for all three protocol are much longer than $5$ RTT$,$ then which protocol successfully delivers all five data segments in shortest time interval?

Answer this question for all three protocols