For a particular TCP session the current round$-$trip time, cur RTT $,$ is $50$ ms$,$ and at a particular

moment of time the measured acknowledgement from a data segment is after $42$ ms$.$

$($i$)$ Apply the Jacobson algorithm to find the updated value upd RTT $.$ Assume in

calculations the smoothing factors $0\mathrm{.}875==.$

$($ii$)$ Determine the values of the current cur D and the updated updD mean deviations if the

calculated updated value of the Retransmission Time$-$Out upd RT O is $57$ ms$.$