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WAEC Data Processing 2015 Question 29

Question 29

Computer Maintenance

Which of the following is not a preventive maintenance measure?

  1. A.Regular update of the operating system
  2. B.Proper shut down of the system
  3. C.Use of uninterrupted power supply
  4. D.Data recovery
Show the answer and explanation

Answer: D (Data recovery)

Explanation

Data recovery is done after a loss has happened, so it is corrective, not preventive.