Exercise: Operating Systems Concepts

Questions for: Operating Systems Concepts

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
Answer: B
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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
Answer: D
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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
Answer: D
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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
Answer: C
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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
Answer: B
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