Computer Science - Operating Systems Concepts

11. 

Which of the following systems software does the job of merging the records from two files into one?

A. Security software
B. Utility program
C. Networking software
D. Documentation system
E. None of the above

Answer: Option B

Explanation:

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12. 

Fork is

A. the dispatching of a task
B. the creation of a new job
C. the creation of a new process
D. increasing the priority of a task
E. None of the above

Answer: Option C

Explanation:

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13. 

Thrashing

A. is a natural consequence of virtual memory systems
B. can always be avoided by swapping
C. always occurs on large computers
D. can be caused by poor paging algorithms
E. None of the above

Answer: Option D

Explanation:

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14. 

Supervisor state is

A. never used
B. entered by programs when they enter the processor
C. required to perform any I/O
D. only allowed to the operating system
E. None of the above

Answer: Option D

Explanation:

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15. 

Which of the following instruction steps, would be written within the diamond-shaped box, of a flowchart?

A. S = B - C
B. IS A<10
C. PRINT A
D. DATA X,4Z
E. None of the above

Answer: Option B

Explanation:

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