Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Which of the following techniques helps in ‘process synchronization’?
A. Mutexes
B. Virtual memory
C. Memory paging
D. File allocation
Answer: Mutexes
What is ‘paging’ in the context of memory management?
A. Dividing memory into fixed-size blocks
B. Transferring pages between disk and memory
C. Allocating contiguous memory blocks
D. Managing virtual memory space
Answer: Dividing memory into fixed-size blocks
What is the role of the ‘kernel’ in an operating system?
A. Manage system resources and communication
B. Provide a user interface
C. Control network access
D. Manage file permissions
Answer: Manage system resources and communication
Which of the following algorithms is used for ‘page replacement’ in virtual memory management?
A. Least Recently Used (LRU)
B. First-Come, First-Served (FCFS)
C. Shortest Job First (SJF)
D. Round Robin
Answer: Least Recently Used (LRU)
Which of the following is a method for ‘deadlock avoidance’?
A. Banker's algorithm
B. First-Come, First-Served scheduling
C. Round Robin scheduling
D. Least Recently Used algorithm
Answer: Banker's algorithm
Which of the following is NOT a common type of ‘system call’?
A. Process control
B. File management
C. Device management
D. Thread scheduling
Answer: Thread scheduling
What is the primary goal of ‘load balancing’ in distributed systems?
A. Distribute workload evenly across multiple resources
B. Increase the memory capacity of a single machine
C. Reduce the latency of network connections
D. Optimize disk storage usage
Answer: Distribute workload evenly across multiple resources
What does ‘dynamic memory allocation’ refer to?
A. Allocating memory at runtime
B. Allocating fixed-size memory blocks
C. Pre-allocating memory during program startup
D. Static allocation of memory
Answer: Allocating memory at runtime
In the context of ‘file systems’, what is an ‘inode’?
A. A data structure containing file metadata
B. A component that manages file access permissions
C. A unit of file storage
D. A directory entry
Answer: A data structure containing file metadata