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Question 1

What is the purpose of a mobile device’s digitizer?

Answer 1

To convert touch input into digital signals.

Question 2

What component enables wireless charging in mobile devices?

Answer 2

Inductive charging coil.

Question 3

What is the function of a proximity sensor?

Answer 3

To detect how close the device is to another object, like a face during a call.

Question 4

What is the main advantage of OLED displays over LCD?

Answer 4

OLED displays provide better contrast and consume less power for black pixels.

Question 5

What is the term for the operating system that runs on mobile devices?

Answer 5

Mobile Operating System (Mobile OS).

Question 6

What is jailbreaking?

Answer 6

Modifying iOS to remove software restrictions imposed by Apple.

Question 7

What is rooting in Android devices?

Answer 7

Gaining superuser access to the device’s system files.

Question 8

What are mobile device firmware updates used for?

Answer 8

To fix bugs, add features, and improve security.

Question 9

What does a mobile device’s IMAP setting allow?

Answer 9

It allows synchronization of email across multiple devices.

Question 10

What does POP3 do in terms of email retrieval?

Answer 10

It downloads emails to a single device without synchronization.

Question 11

What is the purpose of two-factor authentication (2FA)?

Answer 11

To add a second layer of security when logging in.

Question 12

What is the function of screen calibration?

Answer 12

To adjust touch sensitivity and accuracy.

Question 13

What is the main purpose of the accelerometer in gaming applications?

Answer 13

To control motion-sensitive games.

Question 14

What protocol does AirDrop use to transfer files?

Answer 14

It uses a combination of Bluetooth and Wi-Fi.

Question 15

What is a common method for backing up iOS devices?

Answer 15

Using iCloud or iTunes.

Question 16

What is the main purpose of mobile device encryption?

Answer 16

To secure data stored on the device.

Question 17

What is the difference between Wi-Fi and cellular data?

Answer 17

Wi-Fi connects to local networks, while cellular data uses mobile carrier networks.

Question 18

What is the function of the haptic feedback motor?

Answer 18

To provide tactile feedback like vibrations for notifications or input.

Question 19

What app is used to monitor battery health on iOS devices?

Answer 19

The Battery Health feature in Settings.

Question 20

How can you extend a mobile device’s battery life?

Answer 20

Lower screen brightness, close unused apps, and enable battery-saving mode.

Question 21

What is the typical purpose of a VPN on mobile devices?

Answer 21

To encrypt internet traffic and protect privacy.

Question 22

What mobile device component manages multitouch gestures?

Answer 22

The digitizer.

Question 23

What is the purpose of a mobile device’s cache?

Answer 23

To store temporary data for faster app and system performance.

Question 24

What is screen burn-in, and what display type is most affected?

Answer 24

Permanent ghost images on OLED screens.

Question 25

What mobile feature allows synchronization with cloud storage?

Answer 25

Cloud backup and sync services like iCloud or Google Drive.

Question 26

What is the purpose of Safe Mode on Android devices?

Answer 26

To disable third-party apps for troubleshooting.

Question 27

How do you force restart an iPhone?

Answer 27

Press and quickly release the Volume Up button, then Volume Down, and hold the Power button.

Question 28

What is the most common file format for mobile apps on Android?

Answer 28

APK (Android Package).

Question 29

What feature in iOS allows you to offload unused apps without deleting their data?

Answer 29

Offload Unused Apps.

Question 30

What is the purpose of biometrics like Face ID and fingerprint scanning?

Answer 30

To enable secure and quick authentication.