- A
Use a third-party Task Killer app to automatically close background processes.
Why wrong: Third-party task killers are generally discouraged on modern Android because they can interfere with normal system processes and often don't solve the root cause; the built-in tools are more effective.
- B
Check the Battery Usage menu in Settings to see which app is using the most power.
The Battery Usage menu provides a detailed breakdown of power consumption by app and system services, enabling targeted troubleshooting.
- C
Perform a factory reset from the Recovery Mode menu.
Why wrong: A factory reset is a last-resort measure that erases all data; it is not the first step to diagnose a specific misbehaving app.
- D
Enable Developer Options and increase the background process limit.
Why wrong: Increasing background process limits can actually worsen battery drain and does not help identify the offending app.
Quick Answer
The answer is to use the built-in Battery Usage menu in Settings. This tool is correct because it provides a granular breakdown of power consumption by app and system services, directly revealing which misbehaving app is consuming excessive CPU and battery resources. On the CompTIA A+ Core 2 220-1202 exam, this question tests your knowledge of standard Android troubleshooting tools versus third-party or drastic solutions; a common trap is recommending a Task Killer, which Android itself advises against as it can destabilize the OS. Instead, remember that the Battery Usage tool is your first step for pinpointing battery drain without resorting to a factory reset. A simple memory tip: "Battery first, reset last" — always check the built-in power stats before taking more invasive actions.
220-1102 Mobile OS Features and Tools Practice Question
This 220-1202 practice question tests your understanding of mobile os features and tools. 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 user reports that their Android phone is running slowly and the battery drains quickly. They have many apps installed. Which built-in Android feature should you use to identify and stop a misbehaving app that is consuming excessive CPU and battery resources?
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
Check the Battery Usage menu in Settings to see which app is using the most power.
The correct answer is the Battery Usage tool, which is a standard Android feature that breaks down power consumption by app and system services. This allows a technician to pinpoint which app is causing excessive drain and then force stop or uninstall it. Task Killers are not recommended, and a factory reset is too drastic for this issue.
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.
- ✗
Use a third-party Task Killer app to automatically close background processes.
Why it's wrong here
Third-party task killers are generally discouraged on modern Android because they can interfere with normal system processes and often don't solve the root cause; the built-in tools are more effective.
- ✓
Check the Battery Usage menu in Settings to see which app is using the most power.
Why this is correct
The Battery Usage menu provides a detailed breakdown of power consumption by app and system services, enabling targeted troubleshooting.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Perform a factory reset from the Recovery Mode menu.
Why it's wrong here
A factory reset is a last-resort measure that erases all data; it is not the first step to diagnose a specific misbehaving app.
- ✗
Enable Developer Options and increase the background process limit.
Why it's wrong here
Increasing background process limits can actually worsen battery drain and does not help identify the offending app.
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.
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 220-1202 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.
What to study next
Got this wrong? Here's your next step.
Identify which 220-1202 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.
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Mobile OS Features and Tools — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1202 question test?
Mobile OS Features and Tools — This question tests Mobile OS Features and Tools — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Check the Battery Usage menu in Settings to see which app is using the most power. — The correct answer is the Battery Usage tool, which is a standard Android feature that breaks down power consumption by app and system services. This allows a technician to pinpoint which app is causing excessive drain and then force stop or uninstall it. Task Killers are not recommended, and a factory reset is too drastic for this issue.
What should I do if I get this 220-1202 question wrong?
Identify which 220-1202 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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 19, 2026
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.
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