The answer is the OS update introduced scoped storage restrictions that the app does not support. This is the most likely cause because starting with Android 11, Google enforced scoped storage, which fundamentally changes how apps write to shared storage by requiring them to use specific APIs like MediaStore or the Storage Access Framework, rather than direct file paths. Even if the app has all necessary permissions, it cannot write data if it was built for an older Android version that relied on the legacy storage model. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of mobile OS updates and backward compatibility, often appearing as a trap where candidates assume permission issues are the root cause. A common memory tip is to think of scoped storage as a “walled garden” for each app—your app can read what’s already inside, but it needs a new key (updated API) to plant new seeds.
220-1101 Mobile Device Application Support Practice Question
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 company uses a custom Android app that stores data locally. After a recent OS update, the app fails to write data to the internal storage, but it can read existing data. The app has all necessary permissions. 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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The OS update introduced scoped storage restrictions that the app does not support.
This question tests advanced knowledge of Android storage changes. Starting with Android 11, scoped storage restrictions limit how apps access shared storage. Even with permissions, apps may need to use specific APIs (like MediaStore or SAF) to write files. The app likely needs an update to comply with the new storage model.
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 internal storage is full and cannot accept new data.
Why it's wrong here
If storage were full, the app would likely fail to read or write, and the scenario says reading works.
✓
The OS update introduced scoped storage restrictions that the app does not support.
Why this is correct
Scoped storage limits direct file access; apps targeting older Android versions may not be able to write without using new APIs.
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 app's cache needs to be cleared to free up space.
Why it's wrong here
Clearing cache might help with performance but does not address API-level storage restrictions.
✗
The device's SD card has been removed.
Why it's wrong here
The scenario mentions internal storage, not external SD card, so this is irrelevant.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Scenario analysis trap
If storage were full, the app would likely fail to read or write, and the scenario says reading works.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 OS update introduced scoped storage restrictions that the app does not support. — This question tests advanced knowledge of Android storage changes. Starting with Android 11, scoped storage restrictions limit how apps access shared storage. Even with permissions, apps may need to use specific APIs (like MediaStore or SAF) to write files. The app likely needs an update to comply with the new storage model.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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.
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Question Discussion
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