WAEC Data Processing 2025 Objective — Question 31
Question 31 of 40 from the West African Examinations Council (WAEC) Data Processing 2025 Objective paper, with the correct answer and a full explanation.
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When cleaning the computer system, it is advisable to
- A. restart the computer first
- B. turn off the computer and disconnect from power sourceCorrect
- C. use antiglare cover to protect the screen
- D. use multimeter tester for earthing
Explanation
Safety is paramount when cleaning computer hardware. Powering off and disconnecting eliminates risks of electric shock, short circuits from liquids/conductive materials, and hardware damage from accidental button presses or static discharge.
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