Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What is ‘I/O multiplexing’?
A. The technique of handling multiple I/O operations concurrently
B. A method for managing memory allocation
C. A technique for optimizing process scheduling
D. A way to handle network communication
Answer: The technique of handling multiple I/O operations concurrently
Which of the following is a characteristic of ‘time-sharing systems’?
A. Multiple users share system resources simultaneously
B. Each user gets exclusive access to the system
C. The system only supports batch processing
D. The system is optimized for real-time applications
Answer: Multiple users share system resources simultaneously
Which of the following is a technique used in ‘deadlock prevention’?
A. Ensuring that at least one of the Coffman conditions is not met
B. Using resource allocation graphs
C. Employing deadlock detection algorithms
D. Implementing priority scheduling
Answer: Ensuring that at least one of the Coffman conditions is not met
What is the main advantage of ‘multilevel queue scheduling’?
A. It separates processes into different queues based on their priority and type
B. It provides a single queue for all processes
C. It reduces the complexity of process scheduling
D. It optimizes memory allocation
Answer: It separates processes into different queues based on their priority and type
What is the role of ‘kernel’ in an operating system?
A. To manage hardware resources and system operations
B. To provide user interfaces
C. To execute user applications
D. To handle network communication
Answer: To manage hardware resources and system operations
What is ‘paging’ in memory management?
A. Dividing memory into fixed-size blocks for efficient management
B. Managing disk space allocation
C. Handling process scheduling
D. Optimizing CPU usage
Answer: Dividing memory into fixed-size blocks for efficient management
Which of the following describes ‘deadlock avoidance’?
A. Techniques to prevent deadlock by ensuring conditions do not lead to it
B. Methods to detect deadlock
C. Strategies to recover from deadlock
D. Ways to minimize the impact of deadlock
Answer: Techniques to prevent deadlock by ensuring conditions do not lead to it
Which algorithm selects the process with the smallest burst time for execution?
A. Shortest Job First (SJF)
B. First-Come, First-Served (FCFS)
C. Round Robin
D. Priority Scheduling
Answer: Shortest Job First (SJF)
What is the purpose of ‘file system’?
A. To organize and manage files on storage devices
B. To handle process scheduling
C. To manage network connections
D. To optimize CPU performance
Answer: To organize and manage files on storage devices