Exercise : Operating System MCQ Questions and Answers
1. The LRU algorithm
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Correct Answer : B. pages out pages that have been least used recently
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2. A file organization component of a VSAM file is:
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Correct Answer : D. All of these
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3. In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction.
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Correct Answer : B. absolute mode
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4. What is the name of the system which deals with the running of the actual computer and not with the programming problems?
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Correct Answer : C. Systems program
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5. The working set theory of programming behaviour of processes running within an operating system involves
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Correct Answer : B. the collection of pages that a process accesses
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6. Which table is a permanent database that has an entry for each terminal symbol.
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Correct Answer : C. Terminal table
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7. Trojan-Horse programs
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Correct Answer : C. are legitimate programs that allow unauthorized access
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8. In analyzing the compilation of PL/I program, the term "Syntax analysis" is associated with
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Correct Answer : A. recognition of basic syntactic constructs through reductions.
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9. In which way(s) a macro processor for assembly language can be implemented:
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Correct Answer : B. All of these
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10. The main function of the dispatcher (the portion of the process scheduler) is
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Correct Answer : C. assigning ready process to the CPU
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