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Welcome to the Page Replacement Algorithms MCQs Page

Dive deep into the fascinating world of Page Replacement Algorithms with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Page Replacement Algorithms, a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of Page Replacement Algorithms, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through Page Replacement Algorithms. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Page Replacement Algorithms. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Page Replacement Algorithms MCQs | Page 3 of 4

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Discuss
Answer: (c).RU policy (Recurrently used)
Discuss
Answer: (b).is taking page frames other working sets
Q23.
Recall that Belady’s anomaly is that the pages-fault rate may increase as the number of allocated frames increases. Now consider the following statements:
S1: Random page replacement algorithm (where
a page chosen at random is replaced)
suffers from Belady’s anomaly.

S2: LRU page replacement algorithm suffers
from Belady’s anomaly .
Which of the following is CORRECT?
Discuss
Answer: (b).S1 is true, S2 is false
Q24.
The ……………. Determines when a page should be brought into main memory.
Discuss
Answer: (a).Fetch policy
Q25.
With …………………. A page is written out to secondary memory only when it has been selected for replacement.
Discuss
Answer: (b).demand cleaning
Discuss
Answer: (b).compaction does not involve relocation of programs
Discuss
Answer: (a).the pages, belonging to the working set of the programs, are in main memory
Discuss
Answer: (c).can be temporarily removed by compaction
Q29.
The memory allocation scheme subject to "external" fragmentation is
Discuss
Answer: (a).segmentation
Discuss
Answer: (b).internal fragmentation is increased with small pages
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