CompTIA A+ Core 1 (220-1001) — Question 219

A technician installs a new PoE-capable wireless access point using a 200ft (61m) cable, but the access point does not power on when plugged into the Ethernet cable. The technician verifies the Ethernet cable is plugged into a working switchport. Which of the following should the technician do to resolve this issue?

Answer options

• A. Relocate the AP closer to the switch.
• B. Replace the Ethernet cable with Cat 3.
• C. Set the switchport to autonegotiate.
• D. Install a power injector.

Correct answer: D

Explanation

Installing a power injector is the correct solution because it provides the necessary power over Ethernet to the access point, which may not be receiving sufficient power from the switch alone. Relocating the AP, using a Cat 3 cable, or changing the switchport settings will not address the power delivery issue that is preventing the access point from powering on.