220-801 · Question #675
Which of the following would BEST protect equipment from a brown out?
The correct answer is C. UPS. A UPS (Uninterruptible Power Supply) protects against brownouts by providing regulated power and battery backup when voltage drops below normal levels.
Question
Which of the following would BEST protect equipment from a brown out?
Options
- AHVAC system
- BSurge suppressor
- CUPS
- DPower strip
How the community answered
(64 responses)- A3% (2)
- B2% (1)
- C88% (56)
- D8% (5)
Why each option
A UPS (Uninterruptible Power Supply) protects against brownouts by providing regulated power and battery backup when voltage drops below normal levels.
An HVAC system controls temperature and airflow and has no role in protecting equipment from electrical voltage fluctuations.
A surge suppressor protects against overvoltage spikes, not undervoltage conditions like a brownout.
A UPS contains voltage regulation circuitry that compensates for brownouts (undervoltage conditions) by drawing on its battery to maintain stable output voltage. Unlike a surge suppressor, a UPS actively monitors incoming voltage and supplements it when it falls too low, preventing damage to sensitive components. This makes it the best solution for protecting equipment from both complete outages and partial voltage drops.
A power strip simply distributes power outlets and provides no voltage regulation or protection of any kind.
Concept tested: UPS protection against brownouts and undervoltage
Source: https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/power-management-for-ups-devices
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