CompTIA Network+ Question B-53

A technician is configuring a managed switch and needs to enable 802.3af. Which of the following should the technician enable?

A. PoE
B. Port bonding
C. VLAN
D. Trunking

Correct Answer: A

Explanation:
Power over Ethernet (PoE) is defined by the IEEE 802.3af and 802.3at standards.
PoE allows an Ethernet switch to provide power to an attached device (for example, a wireless access point, security camera, or IP phone) by applying power to the same wires in a UTP cable that are used to transmit and receive data.