Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Which of the following is an example of an ‘object-oriented’ operating system?
A. Windows NT
B. UNIX
C. Linux
D. Mac OS X
Answer: Mac OS X
What is the function of the ‘file descriptor’ in a Unix-like OS?
A. Manage file operations
B. Track process states
C. Handle memory management
D. Control network connections
Answer: Manage file operations
What is ‘semaphore’ used for in operating systems?
A. Synchronization of processes
B. File system management
C. Memory allocation
D. CPU scheduling
Answer: Synchronization of processes
Which of the following is a part of the ‘process control block’ (PCB)?
A. Process ID
B. Page table
C. File descriptor
D. Memory address
Answer: Process ID
What is the role of ‘paging’ in memory management?
A. Divide physical memory into equal-sized blocks
B. Manage disk space allocation
C. Handle process synchronization
D. Allocate CPU time to processes
Answer: Divide physical memory into equal-sized blocks
What does the term ‘process state’ refer to?
A. The current execution status of a process
B. The process priority level
C. The process memory usage
D. The process I/O operations
Answer: The current execution status of a process
Which of the following is an example of a multi-tasking operating system?
A. Windows 10
B. MS-DOS
C. RTOS
D. Single-user OS
Answer: Windows 10
What is ‘thrashing’ in virtual memory management?
A. Excessive paging leading to performance degradation
B. Inadequate memory allocation
C. Inefficient page replacement algorithms
D. Data corruption due to incorrect memory access
Answer: Excessive paging leading to performance degradation
Which algorithm is used for process synchronization?
A. Banker's algorithm
B. Dijkstra's algorithm
C. Peterson's algorithm
D. FIFO scheduling
Answer: Peterson's algorithm