Which of the following controls would be the MOST comprehensive in a remote access network with multiple
and diverse subsystems?

A.
Proxy server

B.
Firewall installation

C.
Network administrator

D.
Password implementation and administration

Explanation:
The most comprehensive control in this situation is password implementation and administration. While firewall
installations are the primary line of defense, they cannot protect all access and, therefore, an element of risk
remains. A proxy server is a type of firewall installation; thus, the same rules apply. The network administrator
may serve as a control, but typically this would not be comprehensive enough to serve on multiple and diverse
systems.