- A
Reinstall the app from the App Store.
Why wrong: Reinstalling will not change the OS version requirement; the app will still crash.
- B
Update the iPhone to iOS 16 or later.
Updating the OS to meet the app's minimum requirement resolves the compatibility issue.
- C
Restart the iPhone to clear temporary files.
Why wrong: Restarting does not change the OS version and will not make the app compatible.
- D
Download an older version of the app from a third-party site.
Why wrong: Downloading apps from unofficial sources is unsafe and violates Apple's security policies; also, older versions may not be available.
Question 590 of 1,020
iPhone App Crashes Immediately on Launch Due to iOS Version
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 brings in an iPhone that is running iOS 15 and complains that a newly released app crashes immediately upon launch. The app requires iOS 16 or later. What is the best solution?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Clue:
"immediately / without restart"Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Quick Answer
The best solution is to update the iPhone to iOS 16 or later. This is correct because the app crashes immediately on launch due to iOS version incompatibility—the app’s system requirements specify iOS 16 or newer, and the device is running iOS 15, which lacks the APIs and frameworks the app depends on to function. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of mobile operating system compatibility and the troubleshooting step of verifying system requirements before installation. A common trap is to assume a reinstall or reboot will fix the crash, but those won’t resolve a fundamental version mismatch. Remember the memory tip: “Check the version before the session”—always confirm the OS version meets the app’s minimum requirements before attempting other fixes. If the iPhone model cannot support iOS 16, the app simply cannot be used, reinforcing that hardware limitations can also dictate software compatibility.
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
✓
Update the iPhone to iOS 16 or later.
The app crashes because it requires iOS 16 APIs and frameworks that are not present in iOS 15. Updating the iPhone to iOS 16 or later provides the necessary runtime environment, resolving the compatibility issue at the system level.
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.
- ✗
Reinstall the app from the App Store.
Why it's wrong here
Reinstalling will not change the OS version requirement; the app will still crash.
- ✓
Update the iPhone to iOS 16 or later.
Why this is correct
Updating the OS to meet the app's minimum requirement resolves the compatibility issue.
Clue confirmation
The clue words "best", "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Restart the iPhone to clear temporary files.
Why it's wrong here
Restarting does not change the OS version and will not make the app compatible.
- ✗
Download an older version of the app from a third-party site.
Why it's wrong here
Downloading apps from unofficial sources is unsafe and violates Apple's security policies; also, older versions may not be available.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The 220-1201 exam often tests the misconception that reinstalling or restarting can fix compatibility issues, when the real root cause is a missing OS version requirement that only an update can address.
Detailed technical explanation
How to think about this question
iOS apps are compiled with a minimum deployment target (e.g., iOS 16) and linked against specific SDK frameworks. If the device's iOS version is lower than the deployment target, the dynamic linker (dyld) will fail to resolve required symbols, causing an immediate crash (SIGABRT). Apple enforces this via App Store review and code signing, ensuring apps only run on supported OS versions.
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.
Visual reference
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: Update the iPhone to iOS 16 or later. — The app crashes because it requires iOS 16 APIs and frameworks that are not present in iOS 15. Updating the iPhone to iOS 16 or later provides the necessary runtime environment, resolving the compatibility issue at the system level.
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: "best", "immediately / without restart". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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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