Problem 6 (20 points) over a connection in which ents at the sender-to-receiver segments may be lost. The TCP sender sends initial window of five t-1,2,3,4,5, respectively. Suppose the initial value of the sender-to-receiver and all sender-to-receiver segments each contain 525 bytes. The delay between the sender and the receiver is 7 time units, and so the first segment arrives at the receiver at t-8, and a receiver-to-sender sequence number is 110 ACK for this segmen t 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 ACKs are lost. Answer the following questions: TCP Sender TCP receiver t- 2 lost 1-9 t- 10 t 11 ts 12 1-15 t 16 ta 18 t 19 Give the sequence number field value in the sender-to-receiver segments in the first set of segments that are sent beginning at t-1, and the acknowledgement number field value in the receiver-to-sender ACK segments that are sent from the receiver back to the sender beginning at t 8 a) b) Next consider the sender-to-receiver segments generated by the sender in response to the ACKS that are received beginning at t-15. Give the sequence number of the segments transmitted and a brief explanation of why a given segment is transmitted, or not on receipt of an ACK transmitted, cumulative acknowledgement, which means that the next sequence sent (Hint - Recall that TCP does will be based on the ACK received. Please note that timeouts are not considered here)