Operating Systems Concepts - Section 5 Multiple Questions and Answers.




26.What is the name given to the organized collection of software that controls the overall operation of a computer?
A. Working system
B. Peripheral system
C. Operating system
D. Controlling system

27.The principle of locality of reference justifies the use of
A. reenterable
B. non reusable
C. virtual memory
D. cache memory

28.The register or main memory location which contains the effective address of the operand is known as
A. pointer
B. indexed register
C. special location
D. scratch pad

29.Thrashing can be avoided if
A. the pages, belonging to the working set of the programs, are in main memory
B. the speed of CPU is increased
C. the speed of I/O processor is increased
D. all of the above

30.In analyzing the compilation of PL/I program, the term "Lexical analysis" is associated with
A. recognition of basic syntactic constructs through reductions.
B. recognition of basic elements and creation of uniform symbols
C. creation of more optional matrix.
D. use of macro processor to produce more optimal assembly code

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