Preventing data corruption due to power interruptions: Which device should you deploy so that power is not cut off unexpectedly and your system can continue running long enough to save work safely?

Introduction / Context:
Unexpected power loss can corrupt open files, damage databases, and interrupt firmware updates. The most reliable way to bridge short outages and allow graceful shutdowns is to use a device that stores energy and instantly supplies it to connected equipment when mains power fails. This question tests your understanding of uninterruptible power strategies for computers and servers.

Given Data / Assumptions:

• Goal: avoid immediate shutdown during brownouts or blackouts.
• Equipment: typical desktop or workstation with operating system and active storage.
• Risk: data loss and file-system corruption during an abrupt power cut.

Concept / Approach:
An Uninterruptible Power Supply (UPS) contains batteries (or other energy storage) and power electronics that provide conditioned power and instantaneous switchover to battery when the mains fails. Surge protectors and proper grounding improve safety and reduce transient damage, but they do not supply power during an outage. Therefore, only a UPS directly prevents interruption long enough to save work or perform an automated shutdown.

Step-by-Step Solution:

Verification / Alternative check:
During a simulated outage (disconnecting mains input), devices on a UPS should continue to run from battery; devices on only a surge protector will shut off immediately.

Why Other Options Are Wrong:

• Proper grounding: Essential for safety and noise control but does not provide backup power.
• Surge protector: Mitigates spikes and surges; cannot power equipment during outages.
• Humorous distractor: Not a real electrical solution.
• None of the above: Incorrect because a UPS fulfills the requirement.

Common Pitfalls:
Confusing surge protection with ride-through capability, undersizing the UPS (insufficient VA/W), and forgetting to connect critical devices like network switches or external drives that also need continuous power.

Final Answer:
UPS