To prevent the loss of data during power failures, use a(n)_____________?
Correct answer: D. UPS
- A. Encryption program
- B. Surge protector
- C. Firewall
- D. UPS
Explanation
A UPS supplies temporary backup power when the main supply fails, allowing work to be saved and systems to shut down safely. A surge protector guards against voltage spikes but does not provide power during an outage.
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About Hardware and Software
Hardware includes the physical components of a computer, such as the CPU, motherboard, registers, memory, storage devices and peripheral equipment. Software covers system software, application software, utilities, drivers and firmware, with attention to how the operating system manages hardware and how software differs from the physical equipment it controls.
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