Which of the following are examples of detective controls?

A.
Biometrics, motion sensors and mantraps.

B.
Audit, firewall, anti-virus and biometrics.

C.
Motion sensors, intruder alarm and audit.

D.
Intruder alarm, mantraps and firewall.

Explanation:
Detective controls are those that operate afterward so as to discover that has happened. Detective
controls include security guards, motion detectors, recording and reviewing of events captured by
security cameras or CCTV, job rotation, mandatory vacations, audit trails, honeypots or honeynets, IDSs,
violation reports, supervision and reviews of users, and incident investigations.
Incorrect Answers:
A: Biometric, motion sensors and mantraps are examples of preventative controls
B: Audit firewall, anti-virus and biometrics are examples of preventive controls as well as detective
controls
D: Intruder alarm, mantraps and firewalls are examples of preventive and deterrent controls.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, p. 133