Figure $2$: Subnetting

$($a$)$ A router connects two networks in Fig. $2.$ A $24-$bit address space, $10\mathrm{.}90\mathrm{.}18\mathrm{.}0/24,$ should

be shared between two subnetworks, A and B$.$ Assign subnets to network A and network

B so that the number of addresses used is minimal. Then, answer the following questions.

$($i$)$ Is the address space, $10\mathrm{.}90.\frac{18\mathrm{.}0}{24},$ public or private?

$($ii$)$ How many hosts can be accommodated on the network, $10\mathrm{.}90\mathrm{.}18\mathrm{.}0/24?$

$($iii$)$ What is the subnet address of A$?$ Give your answer using CIDR notation.

$($iv$)$ What is the broadcast address of $A?$

$($v$)$ What is the range of valid host addresses for A$?$

$($vi$)$ What is the subnet address for B$?$ Give your answer using CIDR notation.

$($vii$)$ What is the broadcast address of $B?$

$($viii$)$ What is the range of valid host addresses for $A?$