Problem
DATAL is a newly founded company that provides data analytics solutions. It has 4 departments (D1, D2, D3 and D4) located on 2 floors of a same building. Each department will have its own LAN. The LAN for D1 and D4 will connect 6 clients, 3 servers and 1 network printers whereas the LAN for D2 and D3 will each connect 10 clients, 4 servers and 2 network printers. All clients (NICs included), servers (NICs included) and network printers have already been bought and do not need to be considered in this exercise.
Using a structured design approach, list (1) each type of hardware component needed, (2) their specific purpose, and (3) the required quantities.