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WAEC Data Processing 2025 Question 31

Question 31

Computer Maintenance

When cleaning the computer system, it is advisable to

  1. A.restart the computer first.
  2. B.turn off the computer and disconnect from power source.
  3. C.use antiglare cover to protect the screen.
  4. D.use multimeter tester for earthing.
Show the answer and explanation

Answer: B (turn off the computer and disconnect from power source.)

Explanation

Switch off and unplug before cleaning to avoid shocks and damage.