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Q6 Single choice

How can using PoE to power cameras help keep them running during a power outage?

A
PoE cameras use less cabling, allowing backup power supplies to last longer
B
PoE cameras are centrally powered from the Ethernet switches which are backed up by uninterrupted power supply (UPS)
C
The PoE standard requires connected devices to include backup batteries, to allow for network dropouts
D
Since PoE cameras are centrally powered by the server, you will only need to add backup power to the server to keep the system running

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