What is the primary difference between open source and closed source software?

• Open source software is free to use, while closed source is not.

• Open source software allows users to see and modify the source code, while closed source does not.

• Closed source software is always more secure than open source.

• Open source software is developed by a single company.

Which operating system is developed by Google?

• iOS

• Windows

• Android

• macOS

What is the purpose of the App Store for Apple iOS devices?

• To sell hardware devices.

• To ensure apps are approved by Apple before release.

• To allow users to download apps without any restrictions.

• To provide a platform for free apps only.

What does sideloading refer to in the context of Android apps?

• Using a virtual machine to run apps.

• Downloading apps from third-party sites only.

• Directly installing apps using an APK file.

• Installing apps from the Google Play Store.

How can users access the notification area on Android devices?

• By swiping up from the bottom of the screen.

• By swiping down from the top of the screen.

• By tapping on the app icon.

• By pressing the home button.

What is a key difference between the iOS and Android interfaces?

• Android has a notification center, while iOS does not.

• iOS has a physical home button, while Android does not.

• Android allows app shortcuts, while iOS does not.

• iOS uses widgets, while Android does not.

What is the function of the accelerometer in mobile devices?

• To enhance audio output.

• To improve camera quality.

• To detect screen orientation.

• To increase battery life.

Which setting must be adjusted to enable auto-rotation on an Android device?

• Settings > Display > Auto-rotate screen.

• Settings > Notifications > Auto-rotate.

• Settings > Location > Auto-rotate.

• Settings > General > Auto-rotate.

What is the purpose of GPS in mobile devices?

• To improve internet connectivity.

• To provide location-based services.

• To enhance battery performance.

• To increase app download speeds.

How can Wi-Fi calling be enabled on an iOS device?

• Settings > Network > Wi-Fi Calling.

• Settings > Phone > Wi-Fi Calling.

• Settings > Privacy > Wi-Fi Calling.

• Settings > General > Wi-Fi Calling.