Multiple choice

UPS stands for

  1. Uninterruptible Power Supply

  2. Universal Power System

  3. Ultraviolet Power Supply

  4. Uninterruptible Power System

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A Correct answer
Explanation

UPS stands for Uninterruptible Power Supply, which provides emergency power when the main power fails. Universal Power System and Ultraviolet Power Supply are not standard terms. While 'System' might seem plausible, the standard industry term is 'Supply'.