easyMultiple ChoiceObjective-mapped
220-1202 Practice Question: A customer reports that their Android phone's…
A customer reports that their Android phone's screen is unresponsive to touch after a drop. They can still hear notifications and see the display. Which built-in tool should you use to test the touchscreen functionality without relying on third-party apps?
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
✓
Diagnostics Mode (e.g., *#0*#)
This question tests knowledge of Android's built-in diagnostic tools. The correct answer is the 'Diagnostics' or 'Test' mode, often accessed via the dialer code or settings, which allows hardware testing without third-party apps. This is a standard feature for verifying touchscreen integrity after physical damage.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Safe Mode
Why it's wrong here
Safe Mode on Android devices is primarily designed to troubleshoot software conflicts caused by recently installed third-party applications. It boots the device with only essential system apps, temporarily disabling user-installed apps. While useful for identifying app-related crashes or freezes, it does not include any built-in diagnostic tools to test hardware components like the touchscreen's responsiveness or accuracy, making it unsuitable for a physical screen issue.
- ✗
Developer Options
Why it's wrong here
Developer Options provide advanced settings intended for application developers and power users, such as USB debugging, animation scale adjustments, and mock location settings. These options facilitate software development and debugging processes, allowing for deeper interaction with the Android operating system. However, they do not offer dedicated, interactive diagnostic tests for specific hardware components like the touchscreen, making them unsuitable for directly identifying a hardware fault.
- ✓
Diagnostics Mode (e.g., *#0*#)
Why this is correct
Many Android manufacturers embed a hidden Diagnostics Mode, often accessible via specific dialer codes like *#0*#, which provides a suite of hardware tests. This mode allows technicians to systematically check various components, including the touchscreen for dead zones or unresponsive areas, the display for pixel issues, and sensors like the accelerometer or gyroscope. It is the ideal tool for precisely verifying if a reported screen issue stems from a hardware malfunction rather than a software glitch.
- ✗
Factory Reset
Why it's wrong here
A factory reset restores an Android device to its original out-of-the-box software state by erasing all user data, installed applications, and customized settings. While it can resolve persistent software issues or prepare a device for resale, it does not include any diagnostic capabilities to test the physical integrity or functionality of hardware components. Performing a factory reset for a suspected hardware problem is an unnecessary and destructive step, as it would delete valuable user data without confirming the root cause.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1202 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 220-1202 exam.