Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation

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What is ‘cache memory’?

A. A small, fast memory located close to the CPU used to store frequently accessed data
B. A method for managing disk performance
C. The process of optimizing network connectivity
D. A technique for handling user permissions

Answer: A small, fast memory located close to the CPU used to store frequently accessed data

What is ‘I/O scheduling’?

A. The method of managing and ordering I/O operations to optimize system performance
B. A technique for optimizing memory usage
C. The process of managing network traffic
D. A method for handling user permissions

Answer: The method of managing and ordering I/O operations to optimize system performance

What is ‘page fault’?

A. An event that occurs when a process attempts to access a page of memory that is not currently in RAM
B. A method for managing disk storage
C. The process of optimizing CPU performance
D. A technique for handling network traffic

Answer: An event that occurs when a process attempts to access a page of memory that is not currently in RAM

What is ‘resource starvation’?

A. A situation where a process is indefinitely delayed from obtaining the necessary resources to proceed
B. A method for optimizing disk performance
C. The process of managing network traffic
D. A technique for handling user permissions

Answer: A situation where a process is indefinitely delayed from obtaining the necessary resources to proceed

What is ‘process control block (PCB)’?

A. A data structure that contains information about a process, such as its state and resources
B. A method for managing disk storage
C. The process of optimizing network performance
D. A technique for handling user permissions

Answer: A data structure that contains information about a process, such as its state and resources

What is ‘file descriptor’?

A. An integer that uniquely identifies an open file within a process
B. A method for managing network traffic
C. The process of optimizing memory usage
D. A technique for handling user permissions

Answer: An integer that uniquely identifies an open file within a process

What is ‘critical section’?

A. A segment of code that must be executed by only one process at a time to prevent data corruption
B. A method for optimizing disk performance
C. The process of managing system memory
D. A technique for improving network security

Answer: A segment of code that must be executed by only one process at a time to prevent data corruption

What is ‘deadlock avoidance’?

A. A strategy to prevent deadlocks by ensuring that the system never enters a deadlock state
B. A method for optimizing network performance
C. The process of managing user permissions
D. A technique for improving disk performance

Answer: A strategy to prevent deadlocks by ensuring that the system never enters a deadlock state

What is ‘dynamic linking’?

A. The process of linking libraries to a program at runtime rather than compile-time
B. A method for managing system memory
C. The technique for optimizing disk storage
D. The process of handling network connections

Answer: The process of linking libraries to a program at runtime rather than compile-time