$($a$)$ You have been appointed as a network designer at Company $x$ and are required to

design a Wide Area Network $($WAN$)$ that can serve three insurance company offices

located at Kedah, Kuala Lumpur and Johor Baharu. Note that, each office has three

main departments served by a local area network $($LAN$)$ to facilitate communication

and information sharing among the employees. Sketch a wired network configuration

to facilitate the communication between the three offices of all departments.

Determine and explain the appropriate network devices and the type of cables for the

designed network.

$[C4,SP4][10$ marks $]$