Select the right answer for the following questions

question$1$:

Select the right answer$($s$)$

rat $3\mathrm{.}0$ drawbacks:

A$.$ Limitation in using physical resources.

B$.$ Low throughput rate.

C$.$ Unreliable.

D$.$ Using negative ACK $($NAK$).$

E$.$ None is true.

question$2$:

Every device connecting to the Internet must deal with:

$*$A$.$ Data$-$Link Layer.

$*$B$.$ Application Layer.

$*$C$.$ Network Layer.

$*$D$.$ Transport Layer.

$*$E$.$ All Layers.

question$3$:

In Selective Repeat protocol.

The sequence number is $(16).$ Then and for avoiding wrong data recognition dilemma, the window size has to be:

$*$A$.$ None is true.

$*$B$.$ Between $(12-14)$

$*$C$.$ Between $(10-12)$

$*$D$.$ Between $(10-14)$

$*$E$.$ At least $(10)$

question$4$:

In Peer to Peer model:

$*$A$.$ Server role is not essential.

$*$B$.$ Clients don't communicate with each other.

$*$C$.$ Server is always operating $($online$).$

$*$D$.$ Whole stress on server.

$*$E$.$ None is true.

question$5$:

Select the right answer $($s$)$:

Router creates the forwarding table by:

A$.$ Flooding.

B$.$Self$-$Learning.

C$.$IP addresses.

D$.$Routing Algorithms.

E$.$ Fragmentation.