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Operating System MCQs 600+ | Most repeated Operating system 600+ MCQs : Part - 02 What is an Operating System Operating system MCQs Operating system repeated MCQs Most wanted Operating system MCQs OPERATING SYSTEM OS MCQQS OSMCQS PPSCMCQS PPSC MCQS FPSC MCQS PPSC FPSC Subject Specialist SS Computer Science mcqs Information Technology mcqs process mcqs important process mcqs NTS TEST MASTER Operating system mcqs 21. A program is an ____ entity. A. Active B. Passive C. Both A and B D. None of thes 22. In Unix, which system call creates the new process A. Fork B. Create C. New D. None of these 23. Which system call is used in Unix to terminate the executoin of the process. A. Fork B. Exe C. Abort D. Exit 24. I/O function allows to exchange data directly between an . A. Process States B. Registers C. I/O module and the processor D. I/O devices 25. Cache memory is intended to provide memory access A. Fastest B. Slow C. Very Slow D. Comparatively Fast 26. The primary element used for data storage is said to be A. Monitor B. Main storage C. secondary storage D. Keyboard 27. Interrupts are provided primarily as a way to A. Improve processor utilization . B. Improve processor execution C. Improve processor control D. Improve processor speed 28. Index register involves adding an A. Index B. Instruction C. Information D. I/O device 29. Program counter contains the address of the A. Next programs to be fetched B. Previous programs to be fetched C. Previous information to be fetched D. Next information to be fetched 30. Memory modules consist of A. Set of Instructions B. Set of Registers C. Set of Locations . D. Set of Programs 31. Processor is often referred to A. Central Processing Unit B. Hardware C. System Bus D. I/O Modules 32. I/O interrupt-driven is more efficient than A. I/O Modules B. I/O Devices C. Programmed I/O D. CPU 33. Segment pointers divided memory into A. Register B. Process C. Segments D. Scaling 34. The set of all logical addresses generated by a program is referred to as a A. Memory Addresses B. Physical Addresses C. Logical address Space D. Buffer Addresses 35. The replacement algorithm chooses the constraints of A. Blocks B. Cache Size C. Mapping Function D. Block Size 36. Data moved between computer components through A. I/O Processor B. I/O Modules C. I/O Devices D. I/O Buffers 37. Condition codes are bits typically set by the . A. Processor execution B. processor operation C. Processor hardware D. Processor software 38. Instruction register contains the instructions most A. recently deleted B. Recently fetched C. Recently updated D. Recently executed 39. The unit of data exchange between cache and main memory is known as A. Cache Memory B. Cache Size C. Block Size D. Mapping Function 40. User visible registers enable the machine or programmer to A. Minimize Compiler . B. Minimize Register C. Minimize Control D. Minimize Main Memory usage