Acritical piece of equipment that provides power to systems even during a black out is called a(n)
(a) power strip
(b) surge protector
(c) uninterruptible power supply
(d) password generator

C) Uninterruptible power supply

Explanation:Uninterruptible power supply(UPS) is the device that is used when the input source of power does not work or fails and thus it acts as a power supply in the emergency situation.This electronic devices in the protection of the hardware components of computer system etc.

Other option are incorrect because power strips, surge protector and password generator are no the devices that work during the power black out situation.Thus, the correct option is option(C).

answers

a. nitrogen (n)

d. oxygen (o)

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