Q$1$ At a given moment, the client has sent the Ack$-1$

CO$3$ segment with the sequence number $2910$ and the

acknowledgement number $2532.$ The RWND of the

client is $8000$ bytes and the RWND of the server is

$10000$ bytes before the C$1$ segment got

transmitted. The size of the segments C$1,$ C$2,$ S$1,$

S$2,$ S$3,$ S$4,$ and S$5$ are $421,123,657,399,232,$

$144,$ and $365$ bytes respectively.

I. Find out which sliding window protocol is

used in this data transmission.

II$.$ Calculate the sequence and

acknowledgement number of the S$1$

segment

III. Calculate the sequence and

acknowledgement number of the Ack$-2$

segment.

IV$.$ Calculate the value of $Sf$ and $Sn$ of the

client before sending the Ack$-1$ segment.

V$.$ Calculate the size of the server's RWND

after receiving the FIN segment.