With each visit of this Operating System online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions Question type Randomized MCQs.Changes every time you visit the test Total Number of Questions 30 Time Limit 20 Minutes Points 1 Point for each Question
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Question 1 of 30
Q-1.A program in execution is called
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Question 2 of 30
Q-2.What is operating system?
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Question 3 of 30
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Question 4 of 30
Q-4.The address of the next instruction to be executed by the current process is provided by the
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Question 5 of 30
Q-5.The pager concerns with the
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Question 6 of 30
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Question 7 of 30
Q-7.Several processes access and manipulate the same data concurrently and the outcome of the
execution depends on the particular order in which the access takes place, is called a(n) ____.
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Question 8 of 30
Q-8.The systems which allows only one process execution at a time, are called
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Question 9 of 30
Q-9.In FIFO page replacement algorithm, when a page must be replaced
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Question 10 of 30
Q-10.What do you mean by Memory Compaction?
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Question 11 of 30
Q-11.Multiprogramming systems:
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Question 12 of 30
Q-12.Semaphore is a/an _______ to solve the critical section problem.
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Question 13 of 30
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Question 14 of 30
Q-14.If a process is executing in its critical section, then no other processes can be executing in
their critical section. This condition is called
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Question 15 of 30
Q-15.Run time mapping from virtual to physical address is done by
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Question 16 of 30
Q-16.What is a long-term scheduler ?
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Question 17 of 30
Q-17.Which of the following does not interrupt a running process ?
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Question 18 of 30
Q-18.The hardware mechanism that allows a device to notify the CPU is called _______.
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Question 19 of 30
Q-19.The ______ register is read by the host to get input.
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Question 20 of 30
Q-20.file system fragmentation occurs when
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Question 21 of 30
Q-21.CPU fetches the instruction from memory according to the value of
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Question 22 of 30
Q-22.Which of the following condition is required for deadlock to be possible?
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Question 23 of 30
Q-23.To access the services of operating system, the interface is provided by the
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Question 24 of 30
Q-24.What is a medium-term scheduler ?
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Question 25 of 30
Q-25.Suppose that a process is in “Blocked” state waiting for some I/O service. When the service
is completed, it goes to the :
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Question 26 of 30
Q-26.A semaphore is a shared integer variable
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Question 27 of 30
Q-27.A ________ is a collection of electronics that can operate a port, a bus, or a device.
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Question 28 of 30
Q-28.What are the requirements for the solution to critical section problem?
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Question 29 of 30
Q-29.Which one of the following is a synchronization tool?
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Question 30 of 30
Q-30.By using the specific system call, we can
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