Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What does the operating system manage?
A. Hardware and software resources
B. Network traffic
C. User data
D. Web content
Answer: Hardware and software resources
What is ‘mutex’?
A. A synchronization primitive that allows only one thread or process to access a resource at a time
B. A method for managing disk performance
C. The process of optimizing network performance
D. A technique for handling user permissions
Answer: A synchronization primitive that allows only one thread or process to access a resource at a time
What is ‘live lock’?
A. A situation where processes keep changing states in response to each other but make no progress
B. A method for managing disk performance
C. The process of handling network traffic
D. A technique for improving system security
Answer: A situation where processes keep changing states in response to each other but make no progress
What is ‘semaphore’?
A. A synchronization primitive used to manage access to shared resources between processes or threads
B. A method for managing disk storage
C. The process of handling network traffic
D. A technique for improving system security
Answer: A synchronization primitive used to manage access to shared resources between processes or threads
What is ‘first-come-first-served scheduling’?
A. A disk scheduling algorithm that processes requests in the order they arrive
B. A method for managing network traffic
C. The process of optimizing memory usage
D. A technique for improving system security
Answer: A disk scheduling algorithm that processes requests in the order they arrive
What is ‘shortest seek time first scheduling’?
A. A disk scheduling algorithm that selects the request closest to the current position of the disk arm
B. A method for managing network traffic
C. The process of optimizing memory usage
D. A technique for improving disk performance
Answer: A disk scheduling algorithm that selects the request closest to the current position of the disk arm
What is ‘elevator algorithm’?
A. A disk scheduling algorithm that moves the disk arm in one direction to service requests and then reverses direction when it reaches the end
B. A method for managing network traffic
C. The process of optimizing memory usage
D. A technique for improving disk performance
Answer: A disk scheduling algorithm that moves the disk arm in one direction to service requests and then reverses direction when it reaches the end
What is ‘multilevel feedback queue scheduling’?
A. A CPU scheduling algorithm that adjusts the priority of processes based on their behavior and history
B. A method for managing disk storage
C. The process of optimizing network performance
D. A technique for handling user permissions
Answer: A CPU scheduling algorithm that adjusts the priority of processes based on their behavior and history
What is ‘shortest job next scheduling’?
A. A CPU scheduling algorithm that selects the process with the smallest execution time next
B. A method for managing disk storage
C. The process of optimizing network performance
D. A technique for handling user permissions
Answer: A CPU scheduling algorithm that selects the process with the smallest execution time next