WAEC Data Processing 2025 Objective — Question 27
Question 27 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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The erratic movement of the mouse pointer is usually caused by
- A. bad connection
- B. dirty mouse ballCorrect
- C. driver error
- D. hardware failure
Explanation
Erratic mouse pointer movement is most commonly caused by a dirty mouse ball (traditional ball mice) or dirty optical sensor (optical/laser mice), where dust or debris disrupts motion tracking.
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