Operating Systems Concepts – Section 1

36. In virtual memory systems, Dynamic address translation

A. is the hardware necessary to implement paging
B. stores pages at a specific location on disk
C. is useless when swapping is used
D. is part of the operating system paging algorithm
E. None of the above

Correct Answer: A. is the hardware necessary to implement paging

37. Fragmentation of the file system

A. occurs only if the file system is used improperly
B. can always be prevented
C. can be temporarily removed by compaction
D. is a characteristic of all file systems
E. None of the above

Correct Answer: C. can be temporarily removed by compaction

38. A non-relocatable program is one which

A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
B. consists of a program and relevant information for its relocation.
C. can itself performs the relocation of its address-sensitive portions.
D. all of the above
E. None of the above

Correct Answer: A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.

39. Which of the following are(is) Language Processor(s)

A. assembles
B. compilers
C. interpreters
D. All of the above
E. None of the above

Correct Answer: D. All of the above

40. In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the
contents of this register is incremented to point to the next item in the list?

A. index addressing
B. indirect addressing
C. auto increment
D. auto decrement
E. None of the above

Correct Answer: C. auto increment

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