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WAEC Data Processing 2022 Question 28

Question 28

Computer Maintenance

A desktop computer is switched on and the monitor displays an error message which reads: No input signal. The likely cause of this error is

  1. A.defective monitor
  2. B.disconnected VGA
  3. C.low memory
  4. D.power failure
Show the answer and explanation

Answer: B (disconnected VGA)

Explanation

The monitor is on but receives no signal, usually because the VGA cable is loose.