PrepAway - Latest Free Exam Questions & Answers

A prolonged high voltage is a:

A prolonged high voltage is a:

PrepAway - Latest Free Exam Questions & Answers

A.
spike

B.
blackout

C.
surge

D.
fault

Explanation:
A surge is a prolonged rise in voltage from a power source. Surges can cause a lot of damage very quickly. A
surge is one of the most common power problems and is controlled with surge protectors. These protectors use
a device called a metal oxide varistor, which moves the excess voltage to ground when a surge occurs. Its
source can be from a strong lightning strike, a power plant going online or offline, a shift in the commercial utility
power grid, and electrical equipment within a business starting and stopping.
Incorrect Answers:
A: A spike is a momentary high voltage, not a prolonged high voltage. Therefore, this answer is incorrect.
B: A blackout is a prolonged complete loss of power, not a prolonged high voltage. Therefore, this answer is
incorrect.
D: A fault is a momentary power outage, not a prolonged high voltage. Therefore, this answer is incorrect.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, pp. 462-463


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