Free CompTIA A+ 220-801 Practice Question
Which of the following allows devices to operate without requiring a separate power source?
VPN
PoE
WPA
QoS
Which of the following allows devices to operate without requiring a separate power source?
VPN
PoE
WPA
QoS
Power over Ethernet (PoE) allows devices to use an ethernet connection as a power source, most commonly found in IP phones. The ethernet cable provides the power for the device to operate as well as network connectivity.
Power over Ethernet, or PoE, describes any of several standards or ad hoc systems that pass electric power along with data on twisted-pair Ethernet cabling. This allows a single cable to provide both a data connection and enough electricity to power networked devices such as wireless access points (WAPs), IP cameras and VoIP phones.
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