What is the first step a technician should take when preparing to work on the inside of a computer?
- Remove the power supply.
- Disconnect the computer from power.
- Disconnect the computer from the network.
- Remove external devices such as a mouse.
Explanation: Before any service inside a computer is performed, the PC should be turned off and disconnected from any source of power to reduce the risk of shock.
Exam with this question: IT Essentials v7.0 - A+ 220-1002 Certification Practice Exam Answers
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