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Hardware Interview Questions & Answers

Hardware Technical Interview Questions

Medium 5 views

A desktop powers on but shows no display. What would you check first?

Check monitor power, input selection, cable, and the intended video output before assuming a failed motherboard. Confirm whether the system completes POST using documented lights, beep codes, or diagn...

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What is ECC memory, and what does it not protect against?

Error-correcting memory stores redundant information that allows supported hardware to detect and correct certain memory errors. The exact coverage depends on the implementation; a common scheme corre...

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A RAID array is healthy. Why does the organization still need backups?

RAID can improve availability and tolerate specific disk failures, depending on the level, but it usually reproduces accidental deletion, corrupted writes, and malicious changes across the array. It d...

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How would you distinguish thermal throttling from insufficient CPU capacity?

Monitor temperature, clock frequency, utilization, power limits, and workload behavior over time. Thermal throttling can show high temperatures accompanied by reduced clocks and declining sustained pe...

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