Which Linux command is used to view the last lines of a file? MCQ with Answer and Explanation

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Which Linux command is used to view the last lines of a file?

A. head

B. cat

C. less

D. tail

Answer: Option D

Solution (By JKSSB Mock Tests)

tail displays the last few lines of a file; useful for checking recent log entries.

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Question #1

Which of the following is an example of a desktop environment for Linux?

A. Unity

B. Windows Shell

C. GNOME

D. Aqua

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Correct Answer: Option C

Explanation:
GNOME is a popular desktop environment for Linux; Unity was used by Ubuntu earlier, but GNOME is common.

This question belongs to: Computer Operating Systems

Question #2

Which of the following is a type of scheduler that selects the next process to run from the ready queue?

A. Medium-term scheduler

B. I/O scheduler

C. Short-term scheduler (CPU scheduler)

D. Long-term scheduler (job scheduler)

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Correct Answer: Option C

Explanation:
The short-term scheduler selects a process from ready queue and dispatches it to the CPU; occurs frequently.

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Question #3

Which of the following is an example of a distributed operating system?

A. Amoeba

B. Linux

C. Windows Server

D. Android

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Correct Answer: Option A

Explanation:
Amoeba is a distributed OS that manages a collection of computers as a single system; others are not distributed by default.

This question belongs to: Computer Operating Systems

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