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A process refers to 5 pages, A, B, C, D, E in the order :
A, B, C, D, A, B, E, A, B, C, D, E
If the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is: 
  • a)
    8
  • b)
    10
  • c)
    9
  • d)
    7
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A...
From the table below, we can see that pages have been transferred into frames 9 times.
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Most Upvoted Answer
A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A...


Explanation:

Given:
- Pages: A, B, C, D, E in the order: A, B, C, D, A, B, E, A, B, C, D, E
- Page replacement algorithm: FIFO
- Internal store: 3 frames

Page Transfers Calculation:
- Initially, the frames are empty, so pages A, B, C will be loaded into the frames.
- When page D comes, it will replace page A as it was the first loaded page according to FIFO.
- When page A comes again, it will replace page B as it was the second loaded page.
- When page B comes again, it will replace page C as it was the third loaded page.
- When page E comes, it will replace page D as it was the first loaded page.
- This process continues until all pages are accessed.

Page Transfers:
1. A, B, C (Initial pages loaded)
2. A, B, C, D (D replaces A)
3. B, C, D, A (A replaces B)
4. C, D, A, B (B replaces C)
5. D, A, B, E (E replaces D)
6. A, B, E, C (A replaces C)
7. B, E, C, D (B replaces D)
8. E, C, D, A (E replaces A)

Total Page Transfers: 8

Therefore, the correct answer is 9 page transfers with an empty internal store of 3 frames.
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Community Answer
A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A...
From the table below, we can see that pages have been transferred into frames 9 times.
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A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A, B, E, A, B, C, D, EIf the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is:a)8b)10c)9d)7Correct answer is option 'C'. Can you explain this answer?
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A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A, B, E, A, B, C, D, EIf the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is:a)8b)10c)9d)7Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A, B, E, A, B, C, D, EIf the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is:a)8b)10c)9d)7Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A process refers to 5 pages, A, B, C, D, E in the order :A, B, C, D, A, B, E, A, B, C, D, EIf the page replacement algorithm is FIFO, the number of page transfers with an empty internal store of 3 frames is:a)8b)10c)9d)7Correct answer is option 'C'. Can you explain this answer?.
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