The electrical power to the Certkiller .com office has become unstable and brownouts have
become a regular occurrence. Which of the following should the Certkiller .com technician
implement to protect the computer from these brownouts?

A.
A power conditioner.

B.
A surge protector.

C.
A generator.

D.
An Uninterruptible Power Supply (UPS).

Explanation:
An Uninterruptible Power Supply (UPS) system is a backup power system that utilizes batteries to
provide short-term power when a power losses such as a black out or a brownout is detected.
Incorrect Answers:
A: Power conditioner devices assist in keeping the electrical service constant by monitoring and
regulating the power in the building. These devices can activate backup power supplies.
B: Surge protectors are passive devices that are used to protect electrical components from spikes
in the power line. Surge protectors usually utilize Metal Oxide Varistors (MOVs) to shunt the
voltage spike to ground.
C: A generator is used when a continuous power supply is needed in power loss situations and is
activated when a loss in power is detected. It does not protect electrical components from spikes
in the power line.Reference:Mike Pastore and Emmett Dulaney, Security+ Study Guide, 2nd

Edition, Sybex, Alameda, 2004, p 249.Andy Ruth and Kurt Hudson, Security+ Certification
Training Kit, Microsoft Press, Redmond, 2003, Chapter 9, Lesson 1Todd Bill, The Security+
Training Guide, QUE Publishing, Indianapolis, 2003, Chapter 7