Correct Answer: C
Explanation/Reference:
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.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, pp. 462-463