220-1201: CompTIA A+ Certification Exam: Core 1

By CompTIA · Question Mode

QuestionQ20

Hardware and Network Troubleshooting

An end user reports that their laptop has a blank screen. A technician observes the keyboard lights are on, and the fan is running. Which of the following should the technician do next?

Explanation

CompTIA troubleshooting methodology isolates the problem systematically. Since power is confirmed (lights and fan operational), connecting an external monitor determines whether the issue is with the laptop's internal display hardware (LCD, ribbon cable, inverter) or internal graphics processing. This single test definitively narrows the failure scope.

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