Which of the following features can BEST be used to facilitate authorized remote access to a
network?

A.
VPN concentrator

B.
Proxy server

C.
Content filter

D.
Load balancer

Explanation:
The VPN Concentrator is used for Remote Access VPN’s. In typical use, a Remote Access VPN
allows users to use an encrypted tunnel to securely access a corporate or other network via the
Internet.