CCNA Mobile Device Application Support Questions

This question tests understanding of app compatibility with OS updates. iOS updates can deprecate APIs or change security requirements, causing older apps to crash. The app developer must release an update to support the new OS. The technician should check for an app update in the App Store, as the developer likely has a fix.

This question tests knowledge of Windows compatibility and application support on mobile devices. Windows 10 64-bit includes WOW64 (Windows 32-bit on Windows 64-bit) by default, allowing 32-bit apps to run without additional configuration. No special steps are needed.

This scenario tests systematic troubleshooting for a single app crash. After a restart, the next step is to clear the app's cache/data or reset its settings, as corrupted browsing data is a common cause of crashes. For Safari on iOS, this is done via Settings > Safari > Clear History and Website Data.

This question tests knowledge of iOS settings and app-specific behavior. The most common cause after an update is that the setting for rotation lock is enabled at the system level (Control Center), not just in the app. The other options are less likely given the timing.

This scenario isolates a specific cellular issue. iMessages and internet work over Wi-Fi or cellular data, but calls require the cellular voice network. A software update can sometimes corrupt carrier settings, which are separate from iOS settings. The other options would affect data as well.

This scenario requires systematic troubleshooting. Checking for OS and app updates is a safe, non-destructive first step, as updates often fix performance bugs. Clearing cache is also valid but less likely to address underlying issues.

This scenario distinguishes between device-wide GPS issues and app-specific problems. Since other apps use location correctly, the issue is likely with the Maps app's configuration, such as incorrect location permissions or a software glitch within the app.

This question tests troubleshooting of mobile app notifications. Since only one app is affected, the issue is likely app-specific. Checking the app's notification settings within iOS (Settings > Notifications > [App]) is the correct first step, as the user may have enabled notifications in the app but iOS-level permissions could be blocking them.

This question tests understanding of mobile app permissions. For an app that needs location data to function, the technician must grant the location permission when prompted or via settings. Denying or ignoring the permission will prevent the app from accessing location services, leading to malfunction.

This question tests advanced Android power management. The 'Keep Wi-Fi on during sleep' setting prevents the device from disconnecting from Wi-Fi when the screen turns off, which is critical for a POS system. The other options do not address the specific requirement.

This question tests knowledge of common mobile app installation issues. The most likely cause is that the device's operating system is too old to support the app, as app developers often set minimum OS requirements. Checking the app's compatibility with the device's OS version is a standard troubleshooting step.

This question tests knowledge of iOS enterprise features. Enabling a passcode and using MDM are both needed, but the passcode is the prerequisite for encryption and remote wipe. The other options are not directly related to encryption or remote management.

This is a nuanced scenario where a single contact fails. The most likely cause is that the contact's number has been blocked in the messaging app or phone settings, which is a common user mistake. Other causes like carrier issues or SIM problems would affect all messages.

This question involves mobile device management and kiosk configuration. Kiosk mode apps often need to be designated as the default launcher or have device admin privileges to start on boot. The technician should check that the kiosk app is set as the default home app in Android settings, as this ensures it launches automatically after reboot.

This question tests advanced troubleshooting for App Store issues. Since internet works for other services, the problem is likely account-related or a restriction. The most common cause is that the Apple ID is not signed in or has a payment issue, which prevents downloads.

This question covers Android enterprise deployment and kiosk mode. Kiosk mode (or single-app mode) is designed to lock a device to one app, ideal for dedicated-use devices. Factory reset or standard settings cannot achieve this level of restriction.

This question tests the ability to identify common app problems. An app that was working and then stops often points to a corrupted cache or data, which can be cleared in Settings without reinstalling. The other options are less likely because the app worked recently and the issue is specific to attachments.

This question tests the troubleshooting methodology for app-specific issues on mobile devices. Since the problem is isolated to one app and basic steps (cache/data clear) have failed, the next logical step is to check for app updates or reinstall the app, as updates often fix compatibility bugs.

This scenario tests the ability to differentiate between hardware and software issues. Since the flicker only occurs in one app, the hardware (display, GPU) is likely fine. The issue is software-related, such as a codec incompatibility or app bug, not a hardware problem.

This question tests knowledge of mobile device management (MDM) and kiosk mode deployment. The correct approach is to use an MDM solution to lock the device into a single-app kiosk mode, which is a standard enterprise feature for dedicated devices.

This is a common battery drain issue. Checking the app's permissions (especially background activity) is the quickest way to identify if the app is misbehaving. Uninstalling is effective but not the first step, and a factory reset is too drastic.

This question tests understanding of email configuration on mobile devices. The inability to send emails while receiving them often points to SMTP server settings or authentication issues, which are separate from incoming (IMAP/POP) settings.

This question addresses common symptoms of poorly optimized or malicious apps. A newly installed app that runs background processes or has bugs can consume CPU cycles and battery, causing performance degradation. The first troubleshooting step is to uninstall the app and observe if the issue resolves.

This scenario focuses on app-specific sync issues after an OS update. The most common cause is that the app's permissions or account settings were reset during the update, requiring re-authorization or re-configuration of the Exchange account within the calendar app.

This scenario tests basic iOS troubleshooting. When an app fails to install despite free space, the most common cause is a network restriction or Apple ID issue. Checking the Apple ID account status is the first logical step.