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Dear candidates you will find MCQ questions of Operating System (OS) here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 51.17K Points
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Q. 231) When high priority task is indirectly preempted by medium priority task effectively inverting the relative priority of the two tasks, the scenario is called

(A) priority inversion
(B) priority removal
(C) priority exchange
(D) priority modification
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Mr. Dubey • 51.17K Points
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Q. 232) Process synchronization can be done on

(A) hardware level
(B) software level
(C) both hardware and software level
(D) none of the mentioned
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Mr. Dubey • 51.17K Points
Coach

Q. 233) A monitor is a module that encapsulates

(A) shared data structures
(B) procedures that operate on shared data structure
(C) synchronization between concurrent procedure invocation
(D) all of the mentioned
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Mr. Dubey • 51.17K Points
Coach

Q. 234) To enable a process to wait within the monitor                      

(A) a condition variable must be declared as condition
(B) condition variables must be used as boolean objects
(C) semaphore must be used
(D) all of the mentioned
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Mr. Dubey • 51.17K Points
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Q. 235) Restricting the child process to a subset of the parent’s resources prevents any process from                      

(A) overloading the system by using a lot of secondary storage
(B) under-loading the system by very less cpu utilization
(C) overloading the system by creating a lot of sub-processes
(D) crashing the system by utilizing multiple resources
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Mr. Dubey • 51.17K Points
Coach

Q. 236) A parent process calling            system call will be suspended until children processes terminate.

(A) wait
(B) fork
(C) exit
(D) exec
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Mr. Dubey • 51.17K Points
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Q. 237) Cascading termination refers to termination of all child processes before the parent terminates              

(A) normally
(B) abnormally
(C) normally or abnormally
(D) none of the mentioned
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Mr. Dubey • 51.17K Points
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Q. 238) In UNIX, each process is identified by its

(A) process control block
(B) device queue
(C) process identifier
(D) none of the mentioned
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Mr. Dubey • 51.17K Points
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Q. 239) The child process can                      

(A) be a duplicate of the parent process
(B) never be a duplicate of the parent process
(C) cannot have another program loaded into it
(D) never have another program loaded into it
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Mr. Dubey • 51.17K Points
Coach

Q. 240) The child process completes execution, but the parent keeps executing, then the child process is known as                      

(A) orphan
(B) zombie
(C) body
(D) dead
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