QUESTION $24$

In TCP$,$ if the sender sends a data segment with sequence number equal to $361$ and containing $18$ bytes of data, then when the receiver receives this segment and sends an ACK back to the sender$,$ the number for the ACK is $q,$ And if the sender continues on to send another segment, the sequence number of that segment is $q,$

A$.361$;$362$

B$.378$;$379$

C$.379$;$379$

D$.362$;$362$

$q,$

QUESTION $25$

About congestion, which of the following is NOT correct?

A$.$ TCP uses network$-$assisted congestion control

B$.$ Congestion may cause packet loss.

C$.$ Congestion may cause long delays for packets

D$.$ Congestion may significantly reduce the throughput

$q,$

QUESTION $26$

When TCP is in steady state $($i$.$e$,$ AIMD$),$ the average throughput is $$ assuming the window size is always $W$ bytes when loss occurs

A$.3\frac{W}{2RTT}$

B$.3\frac{W}{4RTT}$

c$.$ WI$(2$RTT$)$

D$.$ WIRTT