What common defense-in-depth method can help reduce the attack surface?

What common defense-in-depth method can help reduce the attack surface?
A . use 8-character passwords
B . replace copper connections with fiber-based connections
C . deploy IPS, firewalls, and AAA-based platforms and services
D . use UDP protocols to preserve bandwidth and protocol overhead
E . place systems on Internet-facing DMZ links to control traffic flows

View Answer

Answer: C