What is the name of the structural system table maintained by an operating system to keep track of all relevant details of a running process? MCQ with Answer and Explanation

Question
What is the name of the structural system table maintained by an operating system to keep track of all relevant details of a running process?
A. Process Control Block (PCB)
B. Master Boot Record (MBR)
C. File Allocation Table (FAT)
D. Interrupt Vector Table (IVT)
Answer: Option A
Solution (By JKSSB Mock Tests)
The Process Control Block (PCB) is a data structure used by the operating system kernel to store all structural metadata and state flags for a specific process.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
In Android, which component allows an app to run in the background even when the user is not interacting with it?
A. Service
B. Broadcast Receiver
C. Activity
D. Content Provider
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Correct Answer: Option A

Explanation:
Services are designed for background operations without a UI, like playing music or downloading files.
This question belongs to: Computer Operating Systems
Question #2
Which Linux command is used to permanently set an environment variable?
A. export in .bashrc
B. All of the above
C. export in /etc/profile
D. setenv
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Correct Answer: Option B

Explanation:
Environment variables can be set in shell startup files (.bashrc, .profile, /etc/profile) using export.
This question belongs to: Computer Operating Systems
Question #3
Which of the following is the primary function of an operating system?
A. To manage hardware resources and provide services for application software
B. To design graphical user interfaces for all programs
C. To convert high-level programming language to machine code
D. To execute user applications directly without hardware interaction
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Correct Answer: Option A

Explanation:
The OS manages hardware resources (CPU, memory, I/O) and provides services to applications, acting as an intermediary.
This question belongs to: Computer Operating Systems
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