$1)(20$ points$)$ Consider the transmission of a file of size $\backslash ($ F $\backslash )[$Byte$]$ over a packet$-$switched network route consisting of eight links $($i$.$e$.,$ traversing seven packet$-$switching routers$).$ Each link has transmission bit rate $\backslash ($ R$[\backslash$mathrm$\{$bit$\}/\backslash$mathrm$\{$s$\}]\backslash ).$ Suppose propagation delays, queueing delays, and processing delays are negligible. We employ a reliable transmission protocol with acknowledgements.

$($a$)$ Suppose the entire file is sent as one large message and one acknowledgement is sent for the entire file. What is the delay from the start of the transmission at the sender to the receipt of the acknowledgement at the sender$?($b$)$ Suppose the file is partitioned into segments of size $\backslash ($ P $\backslash )[$Byte$]$ with $\backslash (\backslash$frac$\{$F$\}\{$P$\}\backslash )$ being an integer and an acknowledgement is sent for each segment. Suppose further that we employ a send$-$and$-$wait $($stop$-$and$-$wait$)$ reliable transport protocol, i$.$e$.,$ only one unacknowledged segment is allowed to be out in the network at any point in time. What is the delay from the start of the transmission at the sender to the receipt of the acknowledgement for the last segment at the sender$?$

$(20$ points$)$ Consider the transmission of a file of size F $[$Byte$]$ over a packet$-$switched

network route consisting of eight links $($i$.$e$.,$ traversing seven packet$-$switching routers$).$

Each link has transmission bit rate R$[$bit$//$s$].$ Suppose propagation delays, queueing

delays, and processing delays are negligible. We employ a reliable transmission protocol

with acknowledgements.

$($a$)$ Suppose the entire file is sent as one large message and one acknowledgement is sent

for the entire file. What is the delay from the start of the transmission at the sender to

the receipt of the acknowledgement at the sender$?$

$($b$)$ Suppose the file is partitioned into segments of size P $[$Byte$]$ with $($F$)/($P$)$ being an integer

and an acknowledgement is sent for each segment. Suppose further that we employ a

send$-$and$-$wait $($stop$-$and$-$wait$)$ reliable transport protocol, i$.$e$.,$ only one unacknowledged

segment is allowed to be out in the network at any point in time. What is the delay

from the start of the transmission at the sender to the receipt of the acknowledgement

for the last segment at the sender$?$ give me the exact right right ans. and also step by step solution so that it would be easy to understand $..$ please provide right ans