In Linux, what does the command 'ls -l' display? MCQ with Answer and Explanation

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In Linux, what does the command 'ls -l' display?

A. Hidden files as well

B. Detailed file information including permissions, owner, size, and timestamp

C. Files sorted by size

D. Only file names

Answer: Option B

Solution (By JKExamLibrary)

ls -l (long listing) displays permissions, number of links, owner, group, size, date, and filename.

This question belongs to: Computer Operating Systems

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Practice More Operating Systems Questions

Question #1 Report Error

Which process state defines a task that is currently waiting in line to be assigned to a CPU core by the operating system scheduler?

A. Blocked

B. Ready

C. Terminated

D. Running

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Correct Answer: Option B

Explanation:
A process is in the 'Ready' state when it is prepared for execution and is waiting to be allocated a time slice on a processor core.

This question belongs to: Computer Operating Systems

Question #2 Report Error

Which of the following Android components represents a background service without a user interface, designed to perform long-running tasks like fetching web data or playing audio?

A. Content Provider

B. Activity

C. Broadcast Receiver

D. Service

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Correct Answer: Option D

Explanation:
An Android 'Service' is an application component designed to handle background tasks (like music playback or network synchronization) without an explicit user interface.

This question belongs to: Computer Operating Systems