Operating System MCQs

1019 MCQs  (Page 18 of 102)

Attempt Operating System Quiz
A process stack does not contain __________
A. Function parameters
B. Local variables
C. Return addresses
D. Pid of child process
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Which system call can be used by a parent process to determine the termination of child process?
A. Wait
B. Exit
C. Fork
D. Get
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The address of the next instruction to be executed by the current process is provided by the __________
A. Cpu registers
B. Program counter
C. Process stack
D. Pipe
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Which process can be affected by other processes executing in the system?
A. Cooperating process
B. Child process
C. Parent process
D. Init process
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When several processes access the same data concurrently and the outcome of the execution depends on the particular order in which the access takes place is called ________
A. Dynamic condition
B. Race condition
C. Essential condition
D. Critical condition
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If a process is executing in its critical section, then no other processes can be executing in their critical section. What is this condition called?
A. Mutual exclusion
B. Critical exclusion
C. Synchronous exclusion
D. Asynchronous exclusion
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Which one of the following is a synchronization tool?
A. Thread
B. Pipe
C. Semaphore
D. Socket
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A semaphore is a shared integer variable __________
A. That can not drop below zero
B. That can not be more than zero
C. That can not drop below one
D. That can not be more than one
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Mutual exclusion can be provided by the __________
A. Mutex locks
B. Binary semaphores
C. Both mutex locks and binary semaphores
D. None of the mentioned
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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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Word of the Day
12 Jul
Obdurate
stubbornly refusing to change one’s opinion or course of action.
ضدی، بدکار، سنگدلی

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