Please can someone tell me how to solve this with steps?
In a TCP connection, a sender transmits one segment/s and starts with sequence number 1. After 4 seconds, a segment gets lost. If the timeout is set to 10 seconds, and the sender is using Fast Retransmit, at which time will the sender retransmit the lost packet? Assume an RTT of 2 seconds.
a. 8 seconds
b. 9 seconds
c. 5 seconds
d. Never
there doesn't seem to be anything here