Which of the following is a Linux distribution? MCQ with Answer and Explanation

Question
Which of the following is a Linux distribution?
A. Windows 10
B. macOS
C. Android
D. Ubuntu
Answer: Option D
Solution (By JKSSB Mock Tests)
Ubuntu is a popular Linux distribution (distro) based on Debian.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What structural component converts high-level programming instructions directly into a series of system calls handled by the operating system kernel?
A. Hardware Abstraction Layer
B. Master Boot Sector
C. BIOS Chipset
D. API Framework or Standard Runtime Libraries
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Correct Answer: Option D

Explanation:
Application Programming Interfaces (APIs) and runtime libraries bridge user applications to the underlying system calls of the operating system kernel.
This question belongs to: Computer Operating Systems
Question #2
What is the main role of the Android 'MediaPlayer' class?
A. To manage media storage
B. To record audio
C. To edit media files
D. To play audio and video files
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Correct Answer: Option D

Explanation:
MediaPlayer is used for playback of audio/video from files, streams, or resources.
This question belongs to: Computer Operating Systems
Question #3
In Windows, which command is used to list all running services?
A. services.msc
B. sc query
C. tasklist
D. net start
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Correct Answer: Option B

Explanation:
The 'sc query' command (Service Control) displays the status of all installed services, while services.msc opens the GUI.
This question belongs to: Computer Operating Systems
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