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What is the function of a UPS in a computer system ?

  • A.To increase the processor speed
  • B.To supply backup power during a mains failure
  • C.To cool the components
  • D.To store data permanently

Answer: C

Correct answer: To supply backup power during a mains failure

An Uninterruptible Power Supply carries a battery that takes over the instant mains power fails, giving time for an orderly shutdown. Most also smooth voltage fluctuations, which protects the equipment from surges and sags.

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