CompTIA A+ Core 2 (220-1202) — Question 127

Performance on a user's smartphone is degrading. Applications take a long time to start, and switching between windows also takes a long time. Which of the following diagnostic steps should a mobile technician take first?

Answer options

• A. Restore the phone to factory settings.
• B. Restart the phone.
• C. Check the phone's battery state.
• D. Uninstall unneeded applications.

Correct answer: B

Explanation

Restarting the phone is often the simplest and most effective first step to improve performance, as it can clear temporary files and free up system resources. The other options, while potentially helpful, are more drastic measures that may not address the immediate performance issues as effectively as a simple reboot.