Which of the following is a type of process scheduling algorithm that uses multiple queues with different priorities? MCQ with Answer and Explanation

Question
Which of the following is a type of process scheduling algorithm that uses multiple queues with different priorities?
A. Round Robin
B. Priority Scheduling
C. First-Come, First-Served
D. Multilevel Queue Scheduling
Answer: Option D
Solution (By JKSSB Mock Tests)
Multilevel queue partitions processes into separate queues based on priority, with scheduling policies for each queue.
This question belongs to: Computer Operating Systems
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Question #1
What is the purpose of the Android 'GestureDetector' class?
A. To manage touch events
B. To detect common gestures like tap, scroll, fling, and long press
C. To provide haptic feedback
D. To handle motion events
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Correct Answer: Option B

Explanation:
GestureDetector simplifies detection of gestures from touch events, allowing easy implementation of gesture interactions.
This question belongs to: Computer Operating Systems
Question #2
What is the core purpose of a device driver in an operating system?
A. To act as a translator enabling communication between the operating system and specific hardware peripherals.
B. To provide internet connection capabilities to the web browser software.
C. To scan user applications for viruses and security issues.
D. To optimize the layout of database structures in permanent storage.
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Correct Answer: Option A

Explanation:
Device drivers are specialized programs that enable the Operating System to communicate effectively with external hardware components and peripherals.
This question belongs to: Computer Operating Systems
Question #3
Which of the following is a type of operating system that allows direct communication with hardware without a kernel?
A. Hybrid kernel
B. Microkernel
C. Exokernel
D. Monolithic kernel
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Correct Answer: Option C

Explanation:
Exokernel provides minimal abstractions and allows applications to manage hardware directly, but is rare.
This question belongs to: Computer Operating Systems
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