220-801 · Question #7
220-801 Question #7: Real Exam Question with Answer & Explanation
The correct answer is D: Uninterruptible power supply. A brownout is a reduction (sag) in supply voltage, not a complete outage. A UPS (Uninterruptible Power Supply) with voltage regulation actively conditions the incoming power, compensating for voltage drops to deliver stable output voltage to connected equipment. It also provides
Question
Options
- ASurge suppressor
- BComputer power supply with built in surge protections
- CMotherboard with built-in surge protection
- DUninterruptible power supply
Explanation
A brownout is a reduction (sag) in supply voltage, not a complete outage. A UPS (Uninterruptible Power Supply) with voltage regulation actively conditions the incoming power, compensating for voltage drops to deliver stable output voltage to connected equipment. It also provides battery backup during full outages. A surge suppressor only protects against voltage spikes (over-voltage events) - it offers no protection against brownouts. Built-in surge protection on a PSU or motherboard similarly only addresses surges, not sags.
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