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.What are the two types of
Semaphore?
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Question 2 of 30
Q-2.An I/O port typically consists of four registers status, control, ________ and ________registers.
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Question 3 of 30
Q-3._____ is the concept in which a process is copied into main memory from the secondary
memory according to the requirement.
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Question 4 of 30
Q-4.In which type of the following OS, the response time is very crucial.
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Question 5 of 30
Q-5.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 6 of 30
Q-6.In a time-sharing operating system, when the time slot given to a process is completed, the
process goes from the running state to the :
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Question 7 of 30
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Question 8 of 30
Q-8.An un-interruptible unit is known as :
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Question 9 of 30
Q-9.What hole will allocates in “Worst-Fit” algorithm of memory management?
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Question 10 of 30
Q-10.The ______ register is read by the host to get input.
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Question 11 of 30
Q-11.All of the following are TRUE regarding virtual memory EXCEPT
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Question 12 of 30
Q-12.Which of the following
concept is best to preventing page faults?
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Question 13 of 30
Q-13.For effective operating system, when to check for deadlock?
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Question 14 of 30
Q-14.A page fault occurs when
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Question 15 of 30
Q-15.In operating system, each process has its own
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Question 16 of 30
Q-16.Run time mapping from virtual to physical address is done by
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Question 17 of 30
Q-17.Which system call returns the process identifier of a terminated child?
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Question 18 of 30
Q-18.Virtual memory typically
located on
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Question 19 of 30
Q-19.Which of the following state transitions is not possible ?
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Question 20 of 30
Q-20.A set of processes is deadlock if
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Question 21 of 30
Q-21.Copying a process from memory to disk to allow space for other processes
is Called
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Question 22 of 30
Q-22.Which one of the following is the deadlock avoidance algorithm?
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Question 23 of 30
Q-23.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 24 of 30
Q-24.Symptoms of swap-file problems include extremely slow system speed and a disk that is constantly being accessed, which is referred to as ______________.
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Question 25 of 30
Q-25.A memory buffer used to accommodate a speed differential is called
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Question 26 of 30
Q-26.A monitor is a module that encapsulates
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Question 27 of 30
Q-27.In a multi-programming environment :
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Question 28 of 30
Q-28.Which of the following is the system tool?
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Question 29 of 30
Q-29.What is a short-term scheduler ?
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Question 30 of 30
Q-30.Mapping of file is managed by
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