CompTIA Network+ Practice Test 2025 – All-in-One Guide to Master Your Certification!

The correct answer emphasizes the importance of disconnecting from the power source as the initial safety step before working on any electrical system. This crucial action helps prevent electrical shock, short circuits, and potential damage to the equipment or injury to the technician. By ensuring the system is completely powered down, individuals mitigate the risk of live electrical components being accidentally touched during repairs or maintenance.

Checking for power surges might be relevant in some contexts, but it does not address the immediate need to eliminate the risk of electric shock before proceeding with any electrical work. Wearing protective gloves is a good safety practice but does not substitute for ensuring that the system is de-energized. Assessing the device's functionality is important for troubleshooting and repair but should only be conducted once proper safety protocols, including disconnecting the power source, have been established.