As an investor, you've secured a three$-$story building, comprising two apartments per floor. While most apartments boast four rooms, the first$-$floor units are uniquely designed with five rooms each. To enhance your investment's appeal and profitability, you've decided to lease these apartments to businesses, offering the added incentive of complimentary internet access. Each apartment is equipped with a single internet outlet, all of which are centrally managed from a control room located on the building's side. This control room is directly linked to the local Internet Service Provider $($ISP$),$ ensuring reliable connectivity for all tenant businesses.

To establish an IP distribution network that caters to each apartment$/$office$\text{'}$s specific needs within a building equipped with five routers offering wireless capabilities, the following structure is proposed:

First Floor Configuration:

The first$-$floor houses two distinct businesses: a medical center and a medical lab, each occupying one side of the floor. Although separate entities, they share the use of a printer. This printer allows the lab to produce patient reports for the medical center.

Design Strategy: Implement two separate networks, each with its own IP addressing scheme, catering to the medical center and the medical lab, respectively. Within each network, two computers will have the capability to access a shared printer. This setup enables the exchange of printed patient reports between the two businesses. To comply with HIPAA regulations and ensure privacy, these networks are isolated from each other, with the exception of the two designated computers connected to the shared printer.

Second Floor Configuration:

The entire second floor is occupied by a single business entity that utilizes both apartments$/$offices$.$

Design Strategy: Develop a unified network with an IP addressing distribution that serves the entirety of the second floor, accommodating the needs of the single business entity operating there.

Third Floor Configuration:

Each apartment$/$office on the third floor houses an independent business entity, requiring individual networks.

Design Strategy: Create two distinct networks with separate IP addressing distributions for each office. These networks should afford each business private access to its specific resources, such as servers and printers, while preventing visibility or access to and from the neighboring business's network.

Router Optimization:

To ascertain whether the number of routers could be reduced without compromising network efficiency and privacy, consider adopting VLAN $($Virtual Local Area Network$)$ technology. Research VLANs and write your findings if this could be feasible $($you need to search the web on how to implement a VLAN don$$t forget citation$).$