2 Flashcards
What is the purpose of a mobile device’s digitizer?
To convert touch input into digital signals.
What component enables wireless charging in mobile devices?
Inductive charging coil.
What is the function of a proximity sensor?
To detect how close the device is to another object, like a face during a call.
What is the main advantage of OLED displays over LCD?
OLED displays provide better contrast and consume less power for black pixels.
What is the term for the operating system that runs on mobile devices?
Mobile Operating System (Mobile OS).
What is jailbreaking?
Modifying iOS to remove software restrictions imposed by Apple.
What is rooting in Android devices?
Gaining superuser access to the device’s system files.
What are mobile device firmware updates used for?
To fix bugs, add features, and improve security.
What does a mobile device’s IMAP setting allow?
It allows synchronization of email across multiple devices.
What does POP3 do in terms of email retrieval?
It downloads emails to a single device without synchronization.
What is the purpose of two-factor authentication (2FA)?
To add a second layer of security when logging in.
What is the function of screen calibration?
To adjust touch sensitivity and accuracy.
What is the main purpose of the accelerometer in gaming applications?
To control motion-sensitive games.
What protocol does AirDrop use to transfer files?
It uses a combination of Bluetooth and Wi-Fi.
What is a common method for backing up iOS devices?
Using iCloud or iTunes.
What is the main purpose of mobile device encryption?
To secure data stored on the device.
What is the difference between Wi-Fi and cellular data?
Wi-Fi connects to local networks, while cellular data uses mobile carrier networks.
What is the function of the haptic feedback motor?
To provide tactile feedback like vibrations for notifications or input.
What app is used to monitor battery health on iOS devices?
The Battery Health feature in Settings.
How can you extend a mobile device’s battery life?
Lower screen brightness, close unused apps, and enable battery-saving mode.
What is the typical purpose of a VPN on mobile devices?
To encrypt internet traffic and protect privacy.
What mobile device component manages multitouch gestures?
The digitizer.
What is the purpose of a mobile device’s cache?
To store temporary data for faster app and system performance.
What is screen burn-in, and what display type is most affected?
Permanent ghost images on OLED screens.
What mobile feature allows synchronization with cloud storage?
Cloud backup and sync services like iCloud or Google Drive.
What is the purpose of Safe Mode on Android devices?
To disable third-party apps for troubleshooting.
How do you force restart an iPhone?
Press and quickly release the Volume Up button, then Volume Down, and hold the Power button.
What is the most common file format for mobile apps on Android?
APK (Android Package).
What feature in iOS allows you to offload unused apps without deleting their data?
Offload Unused Apps.
What is the purpose of biometrics like Face ID and fingerprint scanning?
To enable secure and quick authentication.
