CompTIA Network+ (N10-007) — Question 600

Which of the following IEEE standards explains the characteristics of how PoE should operate in a switched network?

Answer options

• A. 802.11ac
• B. 802.1q
• C. 802.1X
• D. 802.3af

Correct answer: D

Explanation

The correct answer is D, 802.3af, as it specifically defines Power over Ethernet (PoE) standards for delivering power along with data over Ethernet cabling. The other options, while relevant to networking, pertain to different aspects: A refers to wireless networking, B relates to VLAN tagging, and C is about port-based network access control.