The answer is a corrupted email app cache or data, as this is the most likely cause when an Android email app crashes while opening an attachment after previously working fine. App data or cache files can become corrupted over time due to incomplete updates, storage errors, or conflicting background processes, which disrupts the app’s ability to render attachments without crashing. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of common mobile app troubleshooting, specifically distinguishing between software corruption and hardware or network failures. A common trap is to suspect the attachment itself or a server issue, but because the problem is app-wide and recent, clearing the app’s cache or data in Settings is the first logical step before reinstalling. Remember the memory tip: “Cache crash, clear first”—if an app worked yesterday but fails today, suspect local corruption, not the file.
220-1201 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 customer reports that their Android phone's email app crashes whenever they try to open an attachment from a work email. The app worked fine last week. What is the most likely cause of this issue?
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 email app's cache or data is corrupted.
This question tests the ability to identify common app problems. An app that was working and then stops often points to a corrupted cache or data, which can be cleared in Settings without reinstalling. The other options are less likely because the app worked recently and the issue is specific to attachments.
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 email server is blocking attachments.
Why it's wrong here
Incorrect. A server-side block would affect all users, not just one app on one device.
✓
The email app's cache or data is corrupted.
Why this is correct
Correct. Clearing the app's cache or data often resolves crashes caused by corrupted temporary files.
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 phone's operating system needs to be updated.
Why it's wrong here
Incorrect. An OS update is unlikely to fix a single app crash without broader symptoms.
✗
The attachment is too large for the phone to handle.
Why it's wrong here
Incorrect. If size were the issue, the app would likely show an error message, not crash.
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
Command / output trap
Incorrect. If size were the issue, the app would likely show an error message, not crash.
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 email app's cache or data is corrupted. — This question tests the ability to identify common app problems. An app that was working and then stops often points to a corrupted cache or data, which can be cleared in Settings without reinstalling. The other options are less likely because the app worked recently and the issue is specific to attachments.
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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