What mechanism allows a user to interact with an operating system through a sequential text-entry environment instead of graphical elements? MCQ with Answer and Explanation

Question
What mechanism allows a user to interact with an operating system through a sequential text-entry environment instead of graphical elements?
A. Command Line Interface (CLI)
B. Virtual Reality Interface (VRI)
C. Graphical User Interface (GUI)
D. Touch Interface
Answer: Option A
Solution (By JKSSB Mock Tests)
A Command Line Interface (CLI) relies strictly on text commands entered via a terminal shell to execute applications and configure parameters.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which Android subsystem handles layout asset rendering and combines diverse display surfaces onto the final hardware screen output?
A. Activity Coordinator
B. Zygote Prototype
C. SurfaceFlinger Engine
D. Package Manager
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Correct Answer: Option C

Explanation:
SurfaceFlinger functions as the system graphics compositor, merging various application display buffers into a single image to be rendered.
This question belongs to: Computer Operating Systems
Question #2
What is the purpose of the Android 'SharedPreferences'?
A. To store primitive data in key-value pairs persistently
B. To store complex objects
C. To share data between apps
D. To cache data temporarily
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Correct Answer: Option A

Explanation:
SharedPreferences is used for storing small amounts of simple data (booleans, strings, ints) for app settings.
This question belongs to: Computer Operating Systems
Question #3
In Windows, the command 'systeminfo' displays:
A. List of installed updates
B. Disk usage
C. Only the OS version
D. Detailed system configuration including OS version, memory, and network
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Correct Answer: Option D

Explanation:
systeminfo provides a comprehensive summary of system hardware and software configuration.
This question belongs to: Computer Operating Systems
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