System administrator decided to use range of $$private IP addresses$$ to be assigned internal to the organization as public IP addresses are expensive and also that private IP addresses may be mapped to the public IP addresses, later, using concept of Network Address Translation $($NAT$)$ and$/$or Port Address Translation $($PAT$).$ System administrator plans to use range of private IP addresses from the network address:

$10\mathrm{.}1\mathrm{.}192\mathrm{.}0/21.$ This network address will be divided among the departments inside the organization. Any router connectivity will be done using the range of private IP addresses from the network $192\mathrm{.}168\mathrm{.}10\mathrm{.}0/24.$

To begin with, management decides to have four departments in the organization:

a$)$ Call center with $300$ IP addresses

b$)$ Marketing department with $260$ employees and devices

c$)$ Finance department with $25$ hosts in the department

d$)$ Administration department with $20$ host IP addresses in the department

As a system administrator, your role is to design subnetworks for the departments.

Sub$-$network design includes:

i$)$ Subnetwork ID

ii$)$ Subnetwork Broadcast Address

iii$)$ Subnetwork Range of IP addresses

iv$)$ Total number of usable and unusable IP addressesCall Center $(300$ IP addresses$)$:

Show complete design work $($answers do not carry marks when not supported by the

work$)$:

Marketing department $(260$ Host IP addresses$)$ Show complete design work

$($answers do not carry marks when not supported by the work$)$:

Finance department $(25$ hosts$)$:

Show complete design work $($answers do not carry marks when not supported by the

work$)$:

Administration department $(20$ usable IP addresses$)$

Show complete design work $($answers do not carry marks when not supported by the

work$)$: