Which Linux command can be used to view the list of currently running processes for the active user? MCQ with Answer and Explanation

Question
Which Linux command can be used to view the list of currently running processes for the active user?
A. df
B. ps
C. cat
D. ls
Answer: Option B
Solution (By JKSSB Mock Tests)
The 'ps' command outputs a static snapshot list detailing active user or system processes running within the current environment configuration.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What is the function of the Windows 'System Restore' feature?
A. To restore system files and settings to a previous state without affecting personal files
B. To reinstall Windows
C. To backup entire system image
D. To restore deleted files
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Correct Answer: Option A

Explanation:
System Restore uses restore points to revert system changes, useful for fixing issues caused by updates or software.
This question belongs to: Computer Operating Systems
Question #2
What is the purpose of the Android 'UsbManager'?
A. To manage USB device connections and communication
B. To detect USB devices
C. To manage USB storage
D. To control USB charging
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Correct Answer: Option A

Explanation:
UsbManager provides access to USB devices connected to the Android device, allowing communication via USB.
This question belongs to: Computer Operating Systems
Question #3
Which of the following is a feature of the ext4 file system?
A. File compression built-in
B. No journaling
C. Support for extents
D. Case-insensitive filenames
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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
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