Q. The algorithm in which we split m frames among n processes, to give everyone an equal share, m/n frames is known as :

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Q. The algorithm in which we allocate memory to each process according to its size is known as :

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Q. With either equal or proportional algorithm, a high priority process is treated ___________ a low priority process.

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Q. _________ replacement allows a process to select a replacement frame from the set of all frames, even if the frame is currently allocated to some other process.

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Q. _________ replacement allows each process to only select from its own set of allocated frames.

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Q. One problem with the global replacement algorithm is that :

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Q. ________ replacement generally results in greater system throughput.

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Q. A process is thrashing if :

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Q. Thrashing _______ the CPU utilization.

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Q. A locality is :

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Q. When a subroutine is called,

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Q. A program is generally composed of several different localities, which _____ overlap.

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Q. The accuracy of the working set depends on the selection of :

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Q. If working set window is too small :

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Q. If working set window is too large :

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Q. If the sum of the working – set sizes increases, exceeding the total number of available frames :

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Q. Which of the following is FALSE ?

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Q. The following program:

main()
{
if(fork()>0)
sleep(100);
}

results in the creation of:

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Q. The following C program executes :

main()
{
fork();fork();printf("yes");
}
prints yes:

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Q. A virtual memory system uses First In First Out (FIFO) page replacement policy and allocates a fixed number of frames to a process. Consider the following statements :

P : Increasing the number of page frames allocated to a process sometimes increases the page fault rate
Q : Some programs do not exhibit locality of reference

Which of the following is TRUE?

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