CompTIA Network+ (N10-007) — Question 471

The security department is looking to install a new IP-based camera. Plugging the camera into the available Ethernet jack does not power on the camera. Upon further investigation, the cable tests fine, and it does provide power to a VoIP phone. Which of the following is MOST likely causing the issue?

Answer options

• A. The brown pair UTP has a short.
• B. The camera requires 802.3at power.
• C. The camera requires Cat 7 cabling.
• D. The switchport has PoE disabled.

Correct answer: B

Explanation

The correct answer is B because the camera likely needs 802.3at (PoE+) for power, which is not supplied by older standards. Option A is incorrect as the cable tests fine, option C is irrelevant since the cabling type does not affect power delivery, and option D would only apply if the camera was compatible with the existing PoE standard.