Which component of the Linux operating system translates user terminal text commands directly into specific actions understood by the kernel? MCQ with Answer and Explanation

Question
Which component of the Linux operating system translates user terminal text commands directly into specific actions understood by the kernel?
A. Shell
B. BIOS
C. Compiler
D. GUI Desktop
Answer: Option A
Solution (By JKSSB Mock Tests)
The shell is a specialized command-line interpreter program that accepts text inputs from the user and executes system commands via the kernel.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
In Linux, the 'lsblk' command is used to:
A. Display disk usage
B. Show disk partitions only
C. List mounted file systems
D. List block devices (like disks and partitions) in a tree format
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Correct Answer: Option D

Explanation:
lsblk shows all block devices, their sizes, and mount points in a hierarchical view.
This question belongs to: Computer Operating Systems
Question #2
Which of the following is a feature of the ext4 file system?
A. No journaling
B. Case-insensitive filenames
C. Support for extents
D. File compression built-in
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Correct Answer: Option C

Explanation:
ext4 supports extents (contiguous blocks) for better performance; it also has journaling, but not case-insensitivity.
This question belongs to: Computer Operating Systems
Question #3
What is the purpose of the Android 'TextView'?
A. To format text
B. To edit text
C. To display text on the screen
D. To handle text input
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Correct Answer: Option C

Explanation:
TextView is a UI component for displaying read-only text; EditText is for editable text.
This question belongs to: Computer Operating Systems
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