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

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

A. To install, upgrade, and remove applications on the device

B. To manage notifications

C. To handle content providers

D. To manage system packages and libraries

Answer: Option A

Solution (By JKExamLibrary)

Package Manager is responsible for installation, update, and removal of apps, managing APK files and application metadata.

This question belongs to: Computer Operating Systems

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Which Linux command is used to search for files using a database of filenames?

A. locate

B. find

C. whereis

D. which

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Correct Answer: Option A

Explanation:
locate uses a pre-built database (updatedb) to quickly find files by name; find searches in real-time.

This question belongs to: Computer Operating Systems

Question #2 Report Error

What is the function of the Android 'WifiManager'?

A. To manage Bluetooth

B. To manage Wi-Fi connectivity, scan networks, and configure connections

C. To manage network preferences

D. To manage cellular data

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Correct Answer: Option B

Explanation:
WifiManager provides APIs to enable/disable Wi-Fi, scan for networks, and connect to access points.

This question belongs to: Computer Operating Systems

Question #3 Report Error

Which of the following commands is used in Linux to copy files or directories from one location to another?

A. cp

B. mv

C. rm

D. ln

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Correct Answer: Option A

Explanation:
The 'cp' command is used in Unix-like systems to copy files or entire directory trees from a source path to a destination path.

This question belongs to: Computer Operating Systems

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