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How do you access the notification bar on Android?
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Swipe down from the top of the screen.
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How do you access the list of all apps on Android?
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Swipe up from the bottom of the screen.
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How do you open the Control Center on newer iOS models?
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Swipe down from the top-right corner of the screen.
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How do you open the Control Center on older iOS models?
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Swipe up from the bottom of the screen.
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Why is rebooting a mobile device helpful?
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Rebooting clears RAM (temporary memory) but does not affect saved files or settings. It can restore unresponsive systems or improve performance.
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How do you force restart a device with an unresponsive touchscreen?
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Press a combination of side/top buttons and volume buttons based on the device’s manufacturer instructions.
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What is Safe Mode on Android?
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Safe Mode disables third-party apps and keeps only core services running, useful for diagnosing app-related issues.
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What does a factory reset do to a mobile device?
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It erases all apps, user data, and settings, returning the device to its original state.
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What should you ensure before starting a factory reset?
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The device should have a full battery or be connected to a charger, and you should have account credentials available.
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How do you do a factory reset on an iOS device?
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Go to Settings > General > Reset.
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How do you do a factory reset on a standard Android device?
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Go to Settings > System > Advanced > Reset options.
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Why should you avoid performing a factory reset within 72 hours of changing your account password?
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It could cause problems when signing in again.
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What can cause an OS update to fail?
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Compatibility issues, low battery, connection to a metered network, or insufficient storage.
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How do you check for storage issues on iOS?
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Settings > General > Storage
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How do you check for storage issues on Android?
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Settings > Storage
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What might cause a device to randomly reboot?
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Overheating, low battery, faulty hardware, or a problematic app.
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What should you do if an app is causing random reboots on Android?
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Isolate the faulty app by uninstalling apps one at a time.
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What are possible causes of a slow device response?
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High temperatures, low battery, too many apps running, or poorly designed apps consuming resources.
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Why might an older device become slower after a software update?
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Newer software updates may not be optimized for older hardware, and most vendors do not allow rollback options.
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How do you check rotation lock on iOS?
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Control Center
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How do you check rotation lock on Android?
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Notification drawer
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How can you manually rotate the screen if autorotate is disabled on Android?
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An icon appears in the navigation bar allowing manual screen rotation.
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What should you check if an app fails to launch or crashes?
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Force stop the app, clear the app cache, and check for updates.
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How do you force stop an app on Android?
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Go to Settings > Apps > [App] > Force Stop or App Info > Force Stop.
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How do you force stop an app on iOS?
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Swipe up from the bottom (or double-tap the Home button) and swipe the app off the screen.
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What should you do if an app remains unresponsive after force stopping?
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Reboot the device, check for updates, or uninstall and reinstall the app.
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What is Mobile Device Management (MDM)?
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MDM software can restrict certain apps or functions (e.g., preventing camera use in secure locations).
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How can you update iOS devices through macOS?
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On macOS Catalina or later, manage via Finder. On older macOS use iTunes.
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How can you update iOS devices through a Windows PC?
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Use iTunes.
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What factors can weaken Wi-Fi or Bluetooth signals on a mobile device?
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Distance from the access point, low battery, interference from other devices, and physical barriers.
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What is the range of Bluetooth compared to Wi-Fi?
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Bluetooth has a range of about 10 meters (30 feet), which is shorter than Wi-Fi.
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How do you check if airplane mode is turned on in iOS?
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Check the Control Center
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How do you check if airplane mode is turned on Android?
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Check the Notification drawer
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How do you forget and reconnect to a Wi-Fi network?
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Go to Settings, select the network or device, and choose Forget, then reconnect.
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How do you forget and reconnect to a Bluetooth device?
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Go to Settings, select the network or device, and choose Unpair, then reconnect.
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What is a common issue with Wi-Fi standards compatibility?
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Devices with only 802.11n cannot connect to an access point using only 802.11ac. The access point must be in compatibility mode.
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What should you do if NFC payments fail?
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Ensure the device is unlocked, NFC is enabled, airplane mode is off, and hold the device closer to the reader for longer.
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How do you resolve AirDrop issues on iOS?
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Ensure AirDrop is enabled in Settings > General > AirDrop, both devices are in Bluetooth range, and the recipient is in the sender's contacts or set to receive from everyone.
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What is the Android equivalent of AirDrop?
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Nearby Share, found under Settings > Google > Devices > Nearby Share.