CMT CMT Mobile OS & Application Management 1 — Questions and Answers
Question 1: What is the primary difference between iOS and Android regarding app installation from third-party sources?
- Android allows sideloading APKs; iOS restricts installs to the App Store by default (Correct answer)
- Both allow unrestricted third-party installs
- iOS allows sideloading; Android does not
- Neither platform allows third-party installations
Correct answer: Android allows sideloading APKs; iOS restricts installs to the App Store by default
Android's open architecture permits APK sideloading, while Apple's iOS enforces App Store distribution by default.
Question 2: A customer reports their Android phone is running slowly after installing many apps. What is the FIRST step?
- Check available storage and RAM usage in device settings (Correct answer)
- Perform a factory reset immediately
- Replace the battery
- Update the OS
Correct answer: Check available storage and RAM usage in device settings
Storage and RAM exhaustion are the most common causes of performance degradation and should be checked first.
Question 3: What does 'Developer Options' enable on an Android device that is relevant to technicians?
- USB debugging, mock locations, and advanced performance monitoring (Correct answer)
- Access to the App Store
- Removal of carrier locks
- Full hardware diagnostics only
Correct answer: USB debugging, mock locations, and advanced performance monitoring
Developer Options exposes USB debugging and diagnostic tools that technicians use for troubleshooting and flashing.
Question 4: When updating iOS on a customer's device, what should the technician verify first?
- That the device has sufficient storage and battery charge (at least 50%) before updating (Correct answer)
- That the device is connected to 5G
- That all apps have been deleted
- That the SIM card is removed
Correct answer: That the device has sufficient storage and battery charge (at least 50%) before updating
Insufficient storage or battery during an iOS update can cause the update to fail or brick the device.
Question 5: What is the purpose of Safe Mode on Android?
- It boots the device with only pre-installed apps to isolate third-party app issues (Correct answer)
- It encrypts the device storage
- It disables Wi-Fi to save battery
- It resets network settings
Correct answer: It boots the device with only pre-installed apps to isolate third-party app issues
Safe Mode disables third-party apps, making it the fastest way to determine if a downloaded app is causing problems.
Question 6: A customer's app keeps crashing on iOS. What is the recommended first troubleshooting step?
- Force-close the app and relaunch it, then check for app updates (Correct answer)
- Restore the device to factory settings
- Reinstall iOS
- Replace the logic board
Correct answer: Force-close the app and relaunch it, then check for app updates
Force-closing and checking for updates resolves the majority of app crashes with minimal disruption.
CMT CMT Mobile OS & Application Management 1
What is the primary difference between iOS and Android regarding app installation from third-party sources?