What is the role of the Android 'Installed Packages' list in settings? MCQ with Answer and Explanation

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What is the role of the Android 'Installed Packages' list in settings?

A. To update system firmware

B. To clear app data

C. To check app permissions

D. To view, manage, and uninstall apps

Answer: Option D

Solution (By JKSSB Mock Tests)

The installed apps list allows users to see all applications, manage storage, uninstall, and force stop apps.

This question belongs to: Computer Operating Systems

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Question #1

What does a 'Page Table Base Register (PTBR)' store in a hardware configuration?

A. The current CPU clock frequency.

B. The physical memory address pointing to the start of the active process's page table.

C. The layout coordinates of the desktop wallpaper.

D. The total count of connected external monitor screens.

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Correct Answer: Option B

Explanation:
The PTBR is a dedicated processor register that holds the physical starting address of the active thread's page table map.

This question belongs to: Computer Operating Systems

Question #2

What type of program is 'systemd' in modern Linux operating systems?

A. An open-source web browser package.

B. The primary sound card device driver.

C. A high-performance text editor library.

D. An initialization system and service manager that bootstraps user space and manages system daemons.

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Correct Answer: Option D

Explanation:
systemd is the modern standard init framework and system manager used in Linux to bootstrap user components and control services.

This question belongs to: Computer Operating Systems

Question #3

In Windows, the 'Services' management console can be opened by running:

A. msc services

B. services.msc

C. service.msc

D. compmgmt.msc and then Services

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Correct Answer: Option B

Explanation:
services.msc opens the Services snap-in directly; compmgmt.msc also includes it.

This question belongs to: Computer Operating Systems

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