Which of the following network architecture concepts is used to securely isolate at the boundary
between networks?

A.
VLAN

B.
Subnetting

C.
DMZ

D.
NAT

Explanation:
A demilitarized zone (DMZ) is an area of a network that is designed specifically for public users to
access. The DMZ is a buffer network between the public untrusted Internet and the private trusted
LAN. Often a DMZ is deployed through the use of a multihomed firewall.