What is the purpose of the Linux 'nano' command? MCQ with Answer and Explanation

Question
What is the purpose of the Linux 'nano' command?
A. To set environment variables
B. To view system processes
C. A simple text editor
D. To manage network interfaces
Answer: Option C
Solution (By JKSSB Mock Tests)
nano is a user-friendly text editor for the command line, often pre-installed on many Linux distributions.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which of the following is a type of operating system that divides the CPU time among users in a fair manner?
A. Batch OS
B. Distributed OS
C. Time-sharing OS
D. Real-time OS
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Correct Answer: Option C

Explanation:
Time-sharing (multitasking) OS allocates CPU time slices to multiple users, providing interactive response.
This question belongs to: Computer Operating Systems
Question #2
What does a 'Cold Boot' involve that a 'Warm Boot' explicitly bypasses?
A. The execution of full hardware initialization sequences via the Power-On Self-Test (POST) from a zero power state.
B. Loading user interface themes from secondary disk storage.
C. The execution of compilation code segments.
D. Network interface configuration diagnostics.
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Correct Answer: Option A

Explanation:
Cold booting requires powering components up from scratch, necessitating complete hardware verification routines (POST) missing from warm software resets.
This question belongs to: Computer Operating Systems
Question #3
In Windows, the 'Resource Monitor' can be accessed from Task Manager and provides:
A. List of system events
B. User account management
C. Startup programs
D. Detailed real-time resource usage including CPU, memory, disk, and network
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Correct Answer: Option D

Explanation:
Resource Monitor offers in-depth performance data and per-process resource consumption.
This question belongs to: Computer Operating Systems
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