Q. Virtual Memory

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Q. Under virtual storage,

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Q. Paging

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Q. Which of the following is not true about the memory management?

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Q. The principle of locality of reference justifies the use of

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Q. In virtual memory systems, Dynamic address translation

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Q. Which is not true about the memory management?

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Q. Thrashing

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Q. A process that execute only in main memory is referred to as ……………… and that allocated in disk is referred to a …………….

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Q. Virtual memory can be implemented with

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Q. Page fault frequency in an operating system is reduced when the

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Q. A set of techniques that allow to execute a program which is not entirely in memory is called

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Q. Which of the following is not a key piece of information, stored in single page table entry, assuming pure paging and virtual memory

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Q. Memory utilization factor shall be computed as follows

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Q. What is the impact of thrashing?

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Q. Why do we translate a virtual address to physical address where a multilevel page table is preferred in comparison to a single level page table?

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

1: Sometimes the page fault rate is increased if the number of page frames allocated is increased.
2: Some programs do not exhibit Locality of reference.

Which of the following is true?

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Q. If hardware does not support _________ then a multi - user and multi - processing operating system cannot be implemented.

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Q. A program is executing in a pure demand paging system with 100 records per page with 1 free main memory frame. The address sequence that is generated by tracing this program is recorded as follows,
0100, 0200, 0430, 0499, 0510, 0530, 0560, 0120, 0220, 0240, 0260, 0320, 0370
What are the number of page faults?

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Q. Size of virtual memory depends on

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