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Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Questions  >  The essential content(s) in each entry of a p... Start Learning for Free
The essential content(s) in each entry of a page table is / are
  • a)
    Virtual page number
  • b)
    Page frame number
  • c)
    Both virtual page number and page frame number
  • d)
    Access right information
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
The essential content(s) in each entry of a page table is / area)Virtu...
A page table entry must contain Page frame number. Virtual page number is typically used as index in page table to get the corresponding page frame number.
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The essential content(s) in each entry of a page table is / area)Virtu...


Page Table Entries

The essential content in each entry of a page table is the Page frame number. This is the key information that helps in mapping virtual addresses to physical addresses in memory.

Explanation

- Virtual page number: This is the part of the virtual address that is used to index into the page table. It helps in identifying the specific page within the virtual address space.
- Page frame number: This is the physical address where the corresponding virtual page is stored in memory. It provides the actual location of the data in physical memory.

By storing the page frame number in each entry of the page table, the operating system can quickly determine the physical location of a given virtual page when a memory access is requested. This mapping is essential for efficient memory management and address translation.

In summary, the page frame number is the crucial content in each entry of a page table as it directly links virtual addresses to physical memory locations, enabling effective memory management in a computer system.
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The essential content(s) in each entry of a page table is / area)Virtual page numberb)Page frame numberc)Both virtual page number and page frame numberd)Access right informationCorrect answer is option 'B'. Can you explain this answer?
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