Question: In which of the following Page replacement Policy uses the law of locality of reference as the basis for its replacement decisions?
Answer:
At every page fault the least recently used (LRU) page is replaced by the required page. The page table entry of a page records the time when the page was last referenced. This information is initialized when page is loaded, and it is updated every time the page is referenced. When page fault occurs, this information is used to locate the page pLRU whose last reference is earlier than that of every other page. This page is replaced with the page whose reference led to the page fault.
MCQ: In which of the following Page replacement Policy uses the law of locality of reference as the basis for its replacement decisions?
Explanation:
At every page fault the least recently used (LRU) page is replaced by the required page. The page table entry of a page records the time when the page was last referenced. This information is initialized when page is loaded, and it is updated every time the page is referenced. When page fault occurs, this information is used to locate the page pLRU whose last reference is earlier than that of every other page. This page is replaced with the page whose reference led to the page fault.
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Related Questions
- 1. To achieve the desirable page fault characteristic , a page replacement policy must possess the _________
- 2. Which of the following page replacement algorithm exhibit the stack property ?
- 3. Belady’s Anomaly occurs in which of the following page replacement algorithm?
- 4. Which of the following statement stands true for Belady’s anomaly?
- 5. In which of the following algorithm it is possible to combat <em>thrashing</em> by increasing the value of <em>alloc </em>for each process?
- 6. In which of the following Algorithm where the reference bit is used to determine whether a page has been recently referenced, and some page that has not been recently referenced is replaced?
- 7. Which of the following is a named collection of related information that is recorded on secondary storage and is the smallest allotment of logical secondary storage?
- 8. In Which of the following is a sequence of characters organized into lines (and possibly pages) ?
- 9. In which of the following a sequence of functions, each of which is further organized as declarations followed by executable statements is stored?
- 10. In which of the following file is a series of code sections that the loader can bring into memory and execute?
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