The correct procedure is to go to Settings > Apps > Default apps > Home app and select the default launcher, which allows you to revert to default launcher on Android without losing data. This works because Android treats launchers as interchangeable home apps rather than system files; changing the default simply reassigns which app handles the home screen, leaving the new launcher installed and all your apps, settings, and personal data untouched. On the CompTIA A+ Core 2 220-1202 exam, this question tests your understanding of Android’s app management and default app configuration, often appearing as a scenario where a user’s phone slows down after installing a third-party launcher. A common trap is assuming you must uninstall the new launcher first, which would delete its customizations and potentially cause data loss. Remember the memory tip: “Default apps, not delete apps”—you only need to reassign the home app, not remove the culprit.
220-1202 Mobile OS and App Troubleshooting Practice Question
This 220-1202 practice question tests your understanding of mobile os and app troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 user's Android phone is running extremely slowly after installing a new launcher app. They want to revert to the default launcher without losing data. What is the correct procedure?
Uninstall the new launcher app via the Play Store.
Why wrong: Uninstalling the app will revert to the default launcher, but it may not be necessary and could cause confusion if the user wants to keep the app.
B
Perform a factory reset from Recovery Mode.
Why wrong: A factory reset erases all user data, which is excessive for a launcher issue.
C
Go to Settings > Apps > Default apps > Home app and select the default launcher.
This changes the active launcher without uninstalling the new one, preserving data and allowing easy switching back.
D
Clear the cache partition from Recovery Mode.
Why wrong: Clearing the cache partition may help with system performance but does not change the default launcher.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Go to Settings > Apps > Default apps > Home app and select the default launcher.
Option C is correct because Android allows users to change the default home app via Settings > Apps > Default apps > Home app without uninstalling the new launcher or losing any data. This procedure simply reassigns the default launcher to the system's built-in launcher, preserving all installed apps, settings, and user data.
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.
✗
Uninstall the new launcher app via the Play Store.
Why it's wrong here
Uninstalling the app will revert to the default launcher, but it may not be necessary and could cause confusion if the user wants to keep the app.
✗
Perform a factory reset from Recovery Mode.
Why it's wrong here
A factory reset erases all user data, which is excessive for a launcher issue.
✓
Go to Settings > Apps > Default apps > Home app and select the default launcher.
Why this is correct
This changes the active launcher without uninstalling the new one, preserving data and allowing easy switching back.
Related concept
Read the scenario before looking for a memorised answer.
✗
Clear the cache partition from Recovery Mode.
Why it's wrong here
Clearing the cache partition may help with system performance but does not change the default launcher.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that uninstalling a problematic app is the only way to revert its effects, but in Android, the default app assignment persists even after uninstallation, requiring a manual default reset to avoid instability.
Trap categories for this question
Similar concept trap
Uninstalling the app will revert to the default launcher, but it may not be necessary and could cause confusion if the user wants to keep the app.
Detailed technical explanation
How to think about this question
Android's default app management is handled by the PackageManagerService, which maintains a persistent mapping of default activities for specific intents (e.g., the HOME intent). When a user installs a third-party launcher, it registers itself as a candidate for the HOME intent, and the system prompts the user to choose a default. The Settings app provides a UI to modify this mapping without requiring app removal or data loss, leveraging the `android.settings.HOME_SETTINGS` intent to open the correct settings panel.
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 220-1202 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 220-1202 question in full detail.
Mobile OS and App Troubleshooting — This question tests Mobile OS and App Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Go to Settings > Apps > Default apps > Home app and select the default launcher. — Option C is correct because Android allows users to change the default home app via Settings > Apps > Default apps > Home app without uninstalling the new launcher or losing any data. This procedure simply reassigns the default launcher to the system's built-in launcher, preserving all installed apps, settings, and user data.
What should I do if I get this 220-1202 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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