Operating Systems Concepts – Section 2

46. The working set theory of programming behavior of processes running within an operating system involves

A. the collection of pages that a process accesses
B. disk scheduling mechanisms
C. coalescing holes in memory
D. assigning the CPU to processes
E. None of the above

Correct Answer: A. the collection of pages that a process accesses

47. Operating system is

A. A collection of hardware components
B. A collection of input-output devices
C. A collection of software routines
D. All of the above
E. None of the above

Correct Answer: C. A collection of software routines

48. A file organization component of a VSAM file is:

A. relative record data set
B. keyed sequential data set
C. entry sequential data set
D. all of the above
E. None of the above

Correct Answer: D. all of the above

49. What is the name given to the software which can be legally compiled and often used for free?

A. Shareware program
B. Public domain program
C. Firmware program
D. Mindware
E. None of the above

Correct Answer: B. Public domain program

50. The SJF algorithm executes first the job

A. that last entered the queue
B. that first entered the queue
C. that has been in the queue the longest
D. with the least processor needs
E. None of the above

Correct Answer: D. with the least processor needs

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