Internet Protocol $($IP$)$ address is a network layer protocol address for a

host in a Transmission Control Protocol$/$Internet Protocol TCP$/$IP network.

$($a$)$ What is the port size in an IP address and how can determine the

class with bits? Explain with an example.

$(10$ marks$)$

$($b$)$ What is the difference between IPv$4$ and IPv$6?$

$(15$ marks$)$

$(25$ marks$)$