Which of the following usually provides reliable, real-time information without consuming network
or host resources?

A.
network-based IDS

B.
host-based IDS

C.
application-based IDS

D.
firewall-based IDS

Explanation:
“A network-based IDS has little negative affect on overall network performance, and
because it is deployed on a single-purpose system, it doesn’t adversely affect the performance of
any other computer.” Pg 34 Krutz: CISSP Prep Guide: Gold Edition.