- A
The tablet's camera hardware is defective.
Why wrong: A hardware defect would affect all camera apps, not just this one, and the scenario does not mention other camera apps failing.
- B
The app is not compatible with the tablet's Android version.
Why wrong: If compatibility were the issue, the app would likely fail on all tablets with the same OS, not just one.
- C
The camera permission for the app has been denied.
If the permission is denied, the app cannot access the camera, causing it to fail on that specific device.
- D
The tablet's storage is full, preventing the app from saving photos.
Why wrong: Storage fullness might affect saving images but would not prevent the camera from opening initially.
Question 888 of 1,020
Android App Camera Permission Issue
This 220-1201 practice question tests your understanding of mobile device application support. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A technician is deploying a new Android app across several company tablets. The app requires access to the device's camera to scan barcodes. During testing, the app fails to open the camera on one tablet but works on others. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Quick Answer
The answer is that the camera permission for the app has been denied. This is the most likely cause because the app functions correctly on other tablets, isolating the problem to the specific device’s configuration rather than a hardware failure or app incompatibility. On Android, each app must be explicitly granted runtime permissions for sensitive hardware like the camera; if the permission was accidentally denied during setup or by a security policy, the app cannot access the camera even though the hardware works. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of mobile operating system permissions and troubleshooting application-specific hardware access. A common trap is assuming a hardware defect or a corrupted app, but the exam emphasizes checking permission settings first, as they are the most frequent cause of isolated app failures. Remember the mnemonic “P.A.D.”—Permission, App, Device—always verify permissions before assuming a hardware or app issue.
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 camera permission for the app has been denied.
The most likely cause is that the camera permission for the app has been denied. On Android, apps must request runtime permissions for sensitive hardware like the camera. If the user or a policy denied this permission, the app cannot access the camera, even if the hardware is functional. This explains why the app works on other tablets where the permission was granted.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The tablet's camera hardware is defective.
Why it's wrong here
A hardware defect would affect all camera apps, not just this one, and the scenario does not mention other camera apps failing.
- ✗
The app is not compatible with the tablet's Android version.
Why it's wrong here
If compatibility were the issue, the app would likely fail on all tablets with the same OS, not just one.
- ✓
The camera permission for the app has been denied.
Why this is correct
If the permission is denied, the app cannot access the camera, causing it to fail on that specific device.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The tablet's storage is full, preventing the app from saving photos.
Why it's wrong here
Storage fullness might affect saving images but would not prevent the camera from opening initially.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The 220-1201 exam often tests the distinction between hardware failure and permission denial, trapping candidates who assume a hardware defect when the issue is actually a misconfigured software permission, especially in managed device environments.
Trap categories for this question
Scenario analysis trap
A hardware defect would affect all camera apps, not just this one, and the scenario does not mention other camera apps failing.
Detailed technical explanation
How to think about this question
Android's runtime permission model (introduced in Android 6.0, API level 23) requires apps to request dangerous permissions like CAMERA at runtime via `requestPermissions()`. The system shows a dialog, and if denied, the app receives a `SecurityException` or a null camera reference. In enterprise deployments, MDM policies can also pre-deny permissions, causing silent failures. The camera service (android.hardware.camera2) will return an error if the app lacks the permission, even if the hardware is fully functional.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Mobile Device Application Support — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Device Application Support — This question tests Mobile Device Application Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The camera permission for the app has been denied. — The most likely cause is that the camera permission for the app has been denied. On Android, apps must request runtime permissions for sensitive hardware like the camera. If the user or a policy denied this permission, the app cannot access the camera, even if the hardware is functional. This explains why the app works on other tablets where the permission was granted.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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.
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