You run a small network for your business that has a single router connected to the internet and a single switch. you keep sensitive documents on a computer that you would like to keep isolated from other computers on the network. other hosts on the network should not be able to communicate with this computer through the switch, but you still need to access the network through the computer.
what should you use for this situation?

VLAN

Explanation: VLAN(Virtual local area network) is the network technology that lets the user to connect in a virtual( fake) environment and displaying as if they are working in the LAN environment.

It is the used for obtaining the scalability and protection of information while communication. It also helps in adapting the change that occurs in the network and  nodes of the server. Thus, VLAN is the network that should be used in the business to keep sensitive data secure and hosts of the network to connect and communicate .