Which of the following pair of acronym and its expansion is incorrectly matched?

ACPU - Central Processing Unit

BUPS - Uninterruptible Power Software ✓ Correct

CDVD - Digital Versatile Disc

DMAN - Metropolitan Area Network

Correct answer: (B) UPS - Uninterruptible Power Software

Explanation

UPS actually stands for Uninterruptible Power Supply, so pairing it with Uninterruptible Power Software is the incorrect match.

The wrong pair replaces Supply with Software, giving a false expansion of UPS.

CPU is correctly expanded as Central Processing Unit, the main processor of a computer.

DVD is correctly expanded as Digital Versatile Disc, an optical storage medium.

MAN is correctly expanded as Metropolitan Area Network, spanning a city-sized area.

A UPS supplies backup power to keep equipment running during a mains failure.

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