Suppose a tcp connection, with window size 1, loses every other packet. those that do arrive have rtt = 1 second. what happens? what happens to timeout? do this for two cases:
(a) after a packet is eventually received, we pick up where we left off, resuming with estimated rtt initialized to its pre-timeout value, and timeout double that.
(b) after a packet is eventually received, we resume with timeout initialized to the last exponentially backed-off value used for the timeout interval.