Please answer all the questions correctly.

$1.$The value of TCP rwnd is communicated by the $--------$

to the $---------($choices: network layer, sender$,$ host, receiver, socket$).$

$2.$ The sender sends a segment with acknowledgement number $47$ and sequence number $40.$ The next segment from the receiver will have sequence number $--------$

$3.$ The sender sends a segment with sequence number $60$ and the next segment from the sender has sequence number $90.$ This implies that the sender has sent $-------$bytes in the segment with sequence number $60.$

$4.$ Both UDP and TCP offer some common services like multiplexing and demultiplexing. The two key additional services, $----------$

and $------------$ allow TCP to give reliable end$-$to$-$end service.

$5.$ UDP does not give reliable service, but DNS still uses UDP because UDP is $----------$

$6.$ Selective Repeat $($SR$)$ ARQ protocol is more complex than Go$-$Back$\_$N $($GBN$)$ because it uses the following operations $----------$ and $----------$GBN does not.

$7.$ A sender sends SYN segment but does not respond to SYNACK from the receiver.

This is called $-----------$connection.

$8.$ The two methods by which a TCP sender detects congestion are $---------$ and $--------$

$9.$ Congestion window cwnd is generated by a UDP communication needs $-----------$

$10.$ UDP communication needs $----------$socket addresses.