What is the purpose of the Android 'Package Installer'? MCQ with Answer and Explanation

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What is the purpose of the Android 'Package Installer'?

A. To manage app permissions

B. To uninstall applications

C. To update system packages

D. To install APK files on the device

Answer: Option D

Solution (By JKExamLibrary)

Package Installer handles the installation of .apk files, verifying signatures and asking for permissions.

This question belongs to: Computer Operating Systems

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Which of the following is a feature of the Windows 'File History'?

A. Version history of files

B. Automatic backup of personal files to an external drive

C. Restore files easily

D. All of the above

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Correct Answer: Option D

Explanation:
File History backs up libraries, desktop, contacts, and favorites, and keeps versions for recovery.

This question belongs to: Computer Operating Systems

Question #2 Report Error

Which Windows feature allows multiple virtual desktops?

A. Multiple Desktops

B. Windows Snap

C. Virtual Desktop Manager

D. Task View

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Correct Answer: Option D

Explanation:
Task View in Windows 10/11 allows creating, managing, and switching between multiple virtual desktops.

This question belongs to: Computer Operating Systems

Question #3 Report Error

What is the purpose of the Android 'Notification System'?

A. To control volume settings

B. To manage system notifications

C. To handle application permissions

D. To display alerts and messages from apps on the status bar or lock screen

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Correct Answer: Option D

Explanation:
The notification system allows apps to notify users about events, messages, and updates in a non-intrusive manner.

This question belongs to: Computer Operating Systems

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