Figure $1$: A snippet of code.

$($a$)$ Using line numbers, identify which $xxxxx$ value can be replaced with which

term from the above list.

$(12$ marks$)$

$($b$)$ State whether this is a client or server application justifying your answer.

$(4$ marks$)$

$($c$)$ Explain the purpose of the struct identified in line $28$ and identify the required

byte order of data stored in key members of this struct.

$(9$ marks$)$