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WAEC Data Processing 2021 Question 27

Question 27

Computer Maintenance

One precautionary measure taken when cleaning a monitor is

  1. A.plugging of power supply cable.
  2. B.spraying a windows cleaner on the monitor.
  3. C.unplugging the power supply cable.
  4. D.using a vacuum cleaner to clean the monitor casing.
Show the answer and explanation

Answer: C (unplugging the power supply cable.)

Explanation

Unplug the monitor first so there is no risk of shock.