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Axis ANVE Exam - Topic 3 Question 127 Discussion

How can using PoE to power cameras help keep them running during a power outage?
B) PoE cameras are centrally powered from the Ethernet switches which are backed up by uninterrupted power supply (UPS)
A) PoE cameras use less cabling, allowing backup power supplies to last longer
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

Axis ANVE Exam - Topic 3 Question 127 Discussion

Actual exam question for Axis's ANVE exam
Question #: 127
Topic #: 3
[All ANVE Questions]

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

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Suggested Answer: B

Using PoE (Power over Ethernet) to power cameras helps keep them running during a power outage because PoE cameras are centrally powered from the Ethernet switches, which are often backed up by an uninterrupted power supply (UPS). This means that in the event of a power failure, the UPS can provide temporary power to the switches and, consequently, to the connected PoE cameras, ensuring continuous operation.


by Alaine at May 31, 2026, 04:44 PM

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Merilyn
5 days ago
A is interesting. Less cabling could help.
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Leota
10 days ago
I agree, but D sounds good too. Just power the server.
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Sheridan
15 days ago
I think B is the best answer. UPS keeps everything running.
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Edmond
20 days ago
Less cabling means less hassle, love it!
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Janae
26 days ago
D is spot on! Just back up the server and you’re good to go.
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Caprice
1 month ago
Wait, do PoE cameras really need backup batteries? That sounds off.
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Cyril
1 month ago
Totally agree, having a UPS for the switch is key!
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Virgie
1 month ago
PoE cameras are powered through Ethernet, so they can stay on during outages!
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Layla
2 months ago
I feel like option D could be misleading since it implies only the server needs backup power, but I thought all devices should be considered.
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Julio
2 months ago
I vaguely recall a practice question about PoE and backup power, but I can't remember if it was about batteries or UPS.
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Suzan
2 months ago
I think option B sounds right because it talks about Ethernet switches being backed up, which makes sense for keeping cameras running during outages.
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Kristofer
2 months ago
I remember something about how PoE can centralize power, but I'm not sure if it specifically mentions UPS in the options.
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