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CompTIA A+ Certification Core 1 (220-1001)

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Set · 2026-10

Which component normally loses its stored data when power is removed?

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2026-10 · 33 practice questions with explanations

Original, independent study material. This is not an official exam paper.

20 questions on this page

  1. Which component normally loses its stored data when power is removed?

  2. What should a technician check before installing a replacement CPU?

  3. Which storage device has no moving mechanical read/write head?

  4. A laptop touchpad stops responding immediately after the user presses a function-key combination. An external mouse still works. What should the technician check first?

  5. A laptop battery is visibly swollen and pushing against the case. What is the safest response?

  6. A workstation receives 169.254.18.42/16 and cannot reach resources outside its local link. Which service should the technician investigate first?

  7. A user can reach a web server by its IP address but cannot resolve its hostname. Which service is the most likely source of the problem?

  8. Which device forwards packets between different IP networks using a routing table?

  9. A technician needs to verify which physical cable connects a wall jack to a patch-panel port. Which tool combination is most appropriate?

  10. A desktop must use a nearby wired Ethernet network but has no built-in Ethernet port. Which accessory is most appropriate?

  11. A customer wants one cable to a laptop dock for power, an external display, and USB peripherals. What must be checked before selecting the dock?

  12. A desktop with four memory slots has two identical DIMMs. What is the best way to choose their slots for dual-channel operation?

  13. A technician is replacing an M.2 storage device. What must be confirmed in addition to the module's physical length?

  14. A workstation needs to continue operating after either one of two identical storage drives fails. Which RAID level meets this requirement?

  15. A desktop frequently overheats under load after being moved to a dusty office. What is the best initial hardware maintenance action after safely powering it down?

  16. A computer powers on but repeatedly emits a beep pattern and shows no video after a RAM upgrade. What should the technician do next?

  17. A desktop clock resets whenever mains power is disconnected, and firmware settings return to defaults. Which component is the most likely cause?

  18. A laser printer produces pages on which toner rubs off easily. Which assembly should be investigated first?

  19. A laser printer prints a repeating vertical streak on every page, including an internal test page. What does the internal test establish?

  20. An inkjet printer has missing lines in its output after weeks without use. Which maintenance step is most appropriate first?

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