$($a$)$ State the three notations used to represent I.P addresses.

$(3$ marks$)$

$($b$)$ Draw a layered diagram of the TCP$/$IP protocol suite.

$(4$ marks$)$

$2602/305$

Oct$/$Nor $2023$

$4$

$($c$)$ An organisation with I.P address $200\mathrm{.}16\mathrm{.}12\mathrm{.}0$ has a subnet mask of $255\mathrm{.}255\mathrm{.}255\mathrm{.}240$

$($i$)$ Determine the:

I. number of bits borrowed for subnetting;

II$.$ number of subnets.

$($ii$)$ State the first three:

I. subnet addresses;

II$.$ broadcast addresses.