CompTIA A+ Core 2 (220-1002) — Question 101

Which of the following steps should a technician take FIRST to prevent an electrical hazard when repairing a PC?

Answer options

• A. Put on an ESD strap.
• B. Place components on an ESD mat
• C. Disconnect the power before servicing the PC
• D. Place the PC on a grounded work bench

Correct answer: C

Explanation

The correct answer is C because disconnecting the power is the most critical step to ensure safety and prevent electrical shock. While wearing an ESD strap, using an ESD mat, and working on a grounded bench are important for preventing static discharge, they do not address the immediate risk of electric shock from the live power supply.