Problem 6 (20 points) Consider the figure below in which a TCP sender and rece the sender-to-receiver segments may be lost. The TCP sender sends initial window of five segments at t-1,2,3,4,5, respectively. Suppose the initial value of the sender-to-receiver sequence number is 110 iver communicate over a connection in which and all sender-to-receiver segments each contain 525 bytes. The delay between the sender and receiver is 7 time units, and so the first segment arrives at the receiver at t ACK for this segment arrives at the TCP sender at t-15. As shown in the figure, 1 of the five segments is lost between the sender and the receiver, but none of the receiver-to-sender A -8, and a receiver-to-sender CKs are lost. Answer the following questions