Which of the following is a characteristic of a distributed operating system? MCQ with Answer and Explanation

Question
Which of the following is a characteristic of a distributed operating system?
A. Transparency of resources
B. High reliability
C. Scalability
D. All of the above
Answer: Option D
Solution (By JKSSB Mock Tests)
Distributed OS provides transparency (users see a single system), reliability via redundancy, and scalability.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
In Android, which component is responsible for managing the lifecycle of activities?
A. Content Provider
B. Activity Manager
C. Package Manager
D. Window Manager
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Correct Answer: Option B

Explanation:
Activity Manager manages the lifecycle of activities (screens) and handles back stack and transitions.
This question belongs to: Computer Operating Systems
Question #2
What process occurs during a 'Warm Boot' of a computer system?
A. The CPU is physically heated using diagnostic software tools.
B. The computer is reset or restarted using software instructions without cutting off physical electrical power.
C. The operating system is reinstalled entirely from an external installation drive.
D. The system is turned on from a complete powered-off state.
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Correct Answer: Option B

Explanation:
A warm boot (rebooting) occurs when a computer is already running and is restarted using system options or keys without interrupting the electrical power supply.
This question belongs to: Computer Operating Systems
Question #3
In Windows Operating Systems, which system tool is explicitly used to optimize disk space by rearranging fragmented files into contiguous sectors?
A. Disk Defragmenter and Optimize Drives
B. Task Manager
C. Disk Cleanup
D. Chkdsk
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Correct Answer: Option A

Explanation:
Disk Defragmenter consolidates fragmented files on a hard drive to improve read/write access speeds and overall system performance.
This question belongs to: Computer Operating Systems
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