A prolonged power supply that is below normal voltage is a:

The correct answer is A. brownout. A brownout (also called a sag) is a sustained reduction in voltage level below the normal threshold - the power is still on but weakened. This can damage equipment and cause data corruption. A blackout is a complete power loss. A surge is an increase above normal voltage. A…

Submitted by jian89· Apr 18, 2026Security Operations and Administration

Question

Options

Abrownout
Bblackout
Csurge
Dfault

How the community answered

(26 responses)

A
88% (23)
B
8% (2)
D
4% (1)

Explanation

A brownout (also called a sag) is a sustained reduction in voltage level below the normal threshold - the power is still on but weakened. This can damage equipment and cause data corruption. A blackout is a complete power loss. A surge is an increase above normal voltage. A fault is a momentary complete loss. Brownouts are often deliberately induced by utilities during peak demand to avoid total blackouts.

Topics

#Power issues#Brownout#Physical security#Availability

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