You work as a Network Administrator for NetTech Inc. The company’s network is connected to the
Internet. For security, you want to restrict unauthorized access to the network with minimum
administrative effort. You want to implement a hardware-based solution. What will you do to
accomplish this?

A.
Connect a brouter to the network.

B.
Implement a proxy server on the network.

C.
Connect a router to the network.

D.
Implement firewall on the network.