Mobile Device Application Support practice questions

The iOS update corrupted the app's data; reinstalling the app will fix it.

Why wrong: While reinstalling can fix data corruption, the root cause is more likely an API incompatibility that only an app update can resolve.

The user's account has been locked due to multiple failed login attempts.

Why wrong: Account lockout would show an error message, not cause the app to crash immediately upon login attempt.

The iOS update changed the device's security settings, blocking the app.

Why wrong: Security settings changes would typically block the app entirely, not cause a crash only during login.

Verify that the device is not in Do Not Disturb mode.

Why wrong: Do Not Disturb would affect all notifications, not just one app, so it is not the cause here.

Reinstall the email app to reset its configuration.

Why wrong: Reinstalling is more drastic and should be done after verifying settings; it may not fix a disabled system-level toggle.

Update the iPhone to the latest iOS version.

Why wrong: An OS update is unlikely to fix a single app's notification issue, especially if other apps work fine.

Disable location services to save battery.

Why wrong: Disabling location services would prevent the app from logging job sites, defeating its purpose.

Install a third-party location spoofing app.

Why wrong: Using a spoofing app is unethical and may violate company policy; it does not solve the legitimate need for location access.

Set the tablet to Airplane mode to prevent network interference.

Why wrong: Airplane mode disables all wireless connections, including GPS, which would prevent location access.

The app is using HDR content, which requires lower brightness.

Why wrong: HDR content typically increases brightness, not dims it, to display a wider range of colors.

The device's ambient light sensor is malfunctioning.

Why wrong: A sensor issue would affect all apps, not just one, so it is unlikely.

The device is overheating and throttling brightness.

Why wrong: Overheating would affect all apps and is usually accompanied by other symptoms like performance drops.

The app is not compatible with the device's screen resolution.

Why wrong: While screen resolution can affect display, it typically does not prevent installation; most apps scale to fit.

The Google Play Store app needs to be reinstalled.

Why wrong: Reinstalling the Play Store is rarely necessary and would not be the first step for a single app issue.

The user is not signed into their Google account.

Why wrong: Being signed into a Google account is required for purchases but not for installing free apps, and the scenario does not mention a sign-in prompt.

The internal storage is full and cannot accept new data.

Why wrong: If storage were full, the app would likely fail to read or write, and the scenario says reading works.

The app's cache needs to be cleared to free up space.

Why wrong: Clearing cache might help with performance but does not address API-level storage restrictions.

The device's SD card has been removed.

Why wrong: The scenario mentions internal storage, not external SD card, so this is irrelevant.

Reinstall the app from the App Store.

Why wrong: Reinstalling will not change the OS version requirement; the app will still crash.

Restart the iPhone to clear temporary files.

Why wrong: Restarting does not change the OS version and will not make the app compatible.

Download an older version of the app from a third-party site.

Why wrong: Downloading apps from unofficial sources is unsafe and violates Apple's security policies; also, older versions may not be available.

The tablet is connected to Wi-Fi for app updates.

Why wrong: Wi-Fi connectivity is not required for the app to start automatically; it affects updates, not launch behavior.

The tablet's battery is fully charged.

Why wrong: Battery level does not affect whether a designated app launches on boot.

The kiosk app is installed on the SD card.

Why wrong: App location (internal vs. SD) does not impact auto-start behavior; moving it to internal storage would not solve the issue.

The tablet's camera hardware is defective.

Why wrong: A hardware defect would affect all camera apps, not just this one, and the scenario does not mention other camera apps failing.

The app is not compatible with the tablet's Android version.

Why wrong: If compatibility were the issue, the app would likely fail on all tablets with the same OS, not just one.

The tablet's storage is full, preventing the app from saving photos.

Why wrong: Storage fullness might affect saving images but would not prevent the camera from opening initially.

The app is a known malware that steals personal data.

Why wrong: While possible, performance issues are more commonly due to resource-heavy background processes rather than malware specifically.

The phone's storage is full from the app installation.

Why wrong: The scenario states the app was just installed, and storage fullness would not typically cause immediate slowdown unless storage was critically low before.

The app requires a newer version of Android.

Why wrong: Incompatibility would usually cause the app to crash or not install, not gradual slowdown and battery drain.

The accelerometer sensor is damaged.

Why wrong: Incorrect. A damaged sensor would cause issues in all apps, not just after an update.

The app being used does not support landscape mode.

Why wrong: Incorrect. The user says the screen won't rotate at all, not just in one app.

The iOS update corrupted the display driver.

Why wrong: Incorrect. A corrupted display driver would cause visual artifacts, not just rotation failure.

The phone is in Airplane Mode.

Why wrong: Incorrect. Airplane Mode disables all wireless radios, so iMessages and internet would not work.

The SIM card is damaged.

Why wrong: Incorrect. A damaged SIM would typically prevent both calls and data.

The phone's microphone is broken.

Why wrong: Incorrect. A broken microphone would affect voice quality, not the ability to make or receive calls.

Perform a factory reset.

Why wrong: Incorrect. Factory reset is a last resort and should not be the first step.

Uninstall all recently used apps.

Why wrong: Incorrect. The user has not installed new apps, so this is unnecessary.

Replace the phone's battery.

Why wrong: Incorrect. A failing battery can cause shutdowns, not 'app not responding' errors.

Disable the 'Adaptive battery' feature.

Why wrong: Incorrect. Adaptive battery limits background activity, but does not control Wi-Fi sleep behavior.

Set the screen timeout to 'Never'.

Why wrong: Incorrect. This keeps the screen on, which drains battery and is not required for Wi-Fi connectivity.

Enable 'Developer options' and set 'Stay awake'.

Why wrong: Incorrect. 'Stay awake' keeps the screen on while charging, not Wi-Fi connectivity during sleep.

Install a third-party antivirus app.

Why wrong: Incorrect. Antivirus apps are not necessary for iOS encryption or remote wipe.

Disable iCloud backup for the device.

Why wrong: Incorrect. Disabling iCloud backup does not affect encryption or remote wipe capabilities.

Set up a VPN connection for all traffic.

Why wrong: Incorrect. VPN encrypts data in transit, not the device itself, and does not enable remote wipe.

Enable 'Developer options' and set the app as the default launcher.

Why wrong: Incorrect. Developer options are for testing and do not provide persistent, secure lockdown.

Perform a factory reset and install only the custom app.

Why wrong: Incorrect. A factory reset does not prevent users from installing other apps or accessing settings.

Remove the Google Play Store app from the device.

Why wrong: Incorrect. Removing the Play Store does not block access to pre-installed apps or settings.

The email server is blocking attachments.

Why wrong: Incorrect. A server-side block would affect all users, not just one app on one device.

The phone's operating system needs to be updated.

Why wrong: Incorrect. An OS update is unlikely to fix a single app crash without broader symptoms.

The attachment is too large for the phone to handle.

Why wrong: Incorrect. If size were the issue, the app would likely show an error message, not crash.

The Wi-Fi adapter is faulty.

Why wrong: Incorrect. A faulty adapter would prevent connection to any Wi-Fi network.

The phone's date and time are incorrect.

Why wrong: Incorrect. Incorrect date/time can cause certificate validation failures, but this is less common than a missing certificate.

The phone is using a static IP address.

Why wrong: Incorrect. Static IP configuration would not prevent initial connection; it would cause IP conflicts.

Uninstall the social media app immediately.

Why wrong: Incorrect. While uninstalling would fix it, it is not the most efficient first step; checking permissions is faster.

Perform a factory reset of the device.

Why wrong: Incorrect. Factory reset is an extreme measure for a single app problem.

Update the phone's operating system.

Why wrong: Incorrect. An OS update is unlikely to fix battery drain caused by a new app.

Check if the app is compatible with the iOS version.

Why wrong: Incorrect. Compatibility issues usually show a different error message, not 'unable to be installed'.

Reset the phone's network settings.

Why wrong: Incorrect. Network reset is a more drastic step and should be done after checking account status.

Perform a factory reset of the device.

Why wrong: Incorrect. Factory reset is a last resort and unnecessary for a simple install failure.