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220-1201 Practice Question: A user complains that their external USB hard…
A user complains that their external USB hard drive is making a clicking sound and is no longer recognized by any computer. What is the most likely cause?
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
✓
The drive has experienced a mechanical failure.
Clicking sounds from a hard drive typically indicate a mechanical failure, such as a stuck read/write head or damaged platters. This is a classic sign of a failing drive, not a software or connection issue.
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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The USB cable is damaged.
Why it's wrong here
A damaged USB cable primarily affects the electrical power delivery or data transmission path between the drive and the computer. While it could lead to the drive not spinning up at all due to insufficient power, or not being recognized by the operating system due to data corruption, it does not directly cause the internal mechanical components of the hard drive, such as the read/write heads or platters, to produce audible clicking noises. Clicking is indicative of internal drive mechanism issues, not external connectivity problems.
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The drive has suffered a logical failure.
Why it's wrong here
Logical failures pertain to the organization and accessibility of data on the drive, such as a corrupted file system, bad sectors marked at the software level, or partition table errors. These issues manifest as operating system errors, inability to access files, or the drive appearing unformatted, without any physical sounds. They do not involve the physical movement of internal components and therefore do not generate any audible clicking sounds, which are inherently mechanical.
- ✗
The drive's enclosure is faulty.
Why it's wrong here
A faulty external enclosure typically involves issues with its internal power supply, USB interface board, or physical casing. While a power issue within the enclosure could prevent the drive from spinning up entirely, it would not cause the distinct clicking sound. The clicking noise emanates from the internal hard drive's read/write head assembly attempting to seek data but failing, as the enclosure itself is a passive housing and interface, not the source of internal drive mechanism noises.
- ✓
The drive has experienced a mechanical failure.
Why this is correct
Clicking sounds from a hard drive are a classic symptom of a severe mechanical failure within the drive's sealed unit. This often indicates issues like the read/write heads repeatedly attempting to find the service area or data tracks but failing, commonly referred to as a "head crash," or problems with the spindle motor that spins the platters. Such failures prevent proper data access and typically necessitate professional data recovery services or replacement of the drive.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1201 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 220-1201 exam.