easyMultiple Choice
FC0-U71 Practice Question: A user's laptop battery no longer holds a charge…
A user's laptop battery no longer holds a charge and the laptop only works when plugged in. Which component should be replaced?
⚠ Common exam trap
Candidates often confuse a failing power adapter with a dead battery, but the key clue is that the laptop works when plugged in, which rules out the adapter and points directly to the battery as the failed component.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
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Battery
The battery is the component that stores electrical charge to power the laptop when unplugged. If it no longer holds a charge, the laptop will only operate when connected to the power adapter, indicating the battery has reached the end of its rechargeable life cycle and must be replaced.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Battery
Why this is correct
Replacing the battery directly addresses the failed cell, restoring portable operation without mains power. Lithium-ion packs degrade chemically, losing capacity until they no longer accept or hold charge; the laptop then runs only from the AC adapter. Swapping the battery satisfies the stem's constraint that the device must work unplugged.
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RAM
Why it's wrong here
RAM holds running programs and data, so replacing it cannot restore charge storage; the battery's cells are what no longer hold charge. It is tempting because RAM faults cause boot and stability problems, and replacement would be correct if the laptop crashed or failed POST rather than only running on mains power.
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Hard drive
Why it's wrong here
The hard drive stores the operating system and user data, playing no part in battery charging or power retention. It is tempting because drive failure is a common laptop repair, and replacement would be correct if the symptom were boot errors, missing files or slow performance rather than loss of charge.
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Power adapter
Why it's wrong here
The adapter already delivers power successfully, since the laptop runs while plugged in; the fault is the battery's inability to store charge. It is tempting because a failed adapter also causes mains-only operation, and replacing it would be correct if the laptop received no power at all, even when connected.
About these practice questions
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.