Which of the following supports IP telephony devices without requiring external power?

Which of the following supports IP telephony devices without requiring external power?

Which of the following supports IP telephony devices without requiring external power?

A.
VPN

B.
PoE

C.
QoS

D.
WEP

Explanation:

Reference:
http://www.metrolinedirect.com/what-is-power-over-ethernet.html



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