Discuss Axis ANVE Exam Topic 3 Question 127

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

APoE cameras use less cabling, allowing backup power supplies to last longer

BPoE cameras are centrally powered from the Ethernet switches which are backed up by uninterrupted power supply (UPS)

CThe PoE standard requires connected devices to include backup batteries, to allow for network dropouts

DSince PoE cameras are centrally powered by the server, you will only need to add backup power to the server to keep the system running

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.

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17 comments · newest first

Pete 1 month ago

All options have merit, but B feels safest.

Merilyn 1 month ago

I still like A for efficiency.

Leota 2 months ago

Yeah, B is solid. Central power is key.

Sheridan 2 months ago

True, but B covers the whole system.

Pete 2 months ago

But what about C? Backup batteries are important.

Merilyn 2 months ago

A is interesting. Less cabling could help.

Leota 2 months ago

I agree, but D sounds good too. Just power the server.

Sheridan 2 months ago

I think B is the best answer. UPS keeps everything running.

Edmond 3 months ago

Less cabling means less hassle, love it!

Janae 3 months ago

D is spot on! Just back up the server and you’re good to go.

Caprice 3 months ago

Wait, do PoE cameras really need backup batteries? That sounds off.

Cyril 3 months ago

Totally agree, having a UPS for the switch is key!

Virgie 3 months ago

PoE cameras are powered through Ethernet, so they can stay on during outages!

Layla 3 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.

Julio 4 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.

Suzan 4 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.

Kristofer 4 months ago

I remember something about how PoE can centralize power, but I'm not sure if it specifically mentions UPS in the options.

Axis ANVE Exam - Topic 3 Question 127 Discussion