To decrease the buffer size, the frame size is halved. In this case the

efficiency of the line utilisation between stations A and B will:

$($a$)$ decrease $($b$)$ increase $($c$)$ stay the same $($d$)$ neither a$,$ b or c

$10\mathrm{.}2$

$($a$)$

$($b$)$

$($c$)$

$($d$)$

$11)$ A CRC code uses a generator polynomial of degree $16.$ Using

this generator polynomial in communication networks, the number of

redundant bits added to the data will be:

$($a$)16$ bits

$($b$)17$ bits

$($c$)15$ bits

$($d$)$ neither a$,$ b or c

$11\mathrm{.}1$

$($a$)$

$($b$)$

$($c$)$

$($d$)$

In stop$-$and$-$wait method of flow control, if $1000$ good data frames are

sent and received how many ACK frames have been sent by the

receiver?

$($a$)50$

$($b$)99$

$($c$)1000$

$($d$)$ neither a nor b nor c

$11\mathrm{.}2$

$($a$)$

$($b$)$

$($c$)$

$($d$)$