QUESTION THREE $[20]$

You are tasked with designing and implementing a network infrastructure for a medium$-$sized company. The company has two office locations: Head Office $($HO$)$ and Branch Office $($BO$).$ The HO houses $150$ employees, while the BO has $50$ employees. The two locations are connected via a dedicated leased line.

$3\mathrm{.}1$ Describe the key components you would include in your network design, ensuring connectivity and efficient data transmission between the HQ and BO $(10)$

$3\mathrm{.}2$ Compare and contrast two types of network models to enable communication for local and geographically dispersed sites $(10)$