Exercise: Operating Systems Concepts

Questions for: Operating Systems Concepts

IBM released its first PC in 1981. Can you name the operating system which was most popular at that time?
A:
MS-DOS
B:
PC-DOS
C:
OS/360
D:
CP/M
Answer: D
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System programs such as Compilers are designed so that they are
A:
reenterable
B:
non reusable
C:
serially usable
D:
recursive
Answer: A
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The dispatcher
A:
actually schedules the tasks into the processor
B:
puts tasks in I/O wait
C:
is always small and simple
D:
never changes task priorities
Answer: A
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What problem is solved by Dijkstra's banker's algorithm?
A:
mutual exclusion
B:
deadlock recovery
C:
deadlock avoidance
D:
cache coherence
Answer: C
The Banker's algorithm is a resource allocation & deadlock avoidance algorithm developed by Edsger Dijkstra that tests for safety by simulating the allocation of pre-determined maximum possible amounts of all resources, and then makes a "safe-state" check to test for possible deadlock conditions for all other pending activities, before deciding whether allocation should be allowed to continue.
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Which of the following is helpful in evaluating applications software what will best suit your needs?
A:
recommendations by other users
B:
computer magazines
C:
objective software reviews
D:
all of the above
Answer: D
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