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Memory Management and Paging Concepts

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Questions and Answers

What is the primary advantage of using paging in memory management?

Paging allows non-contiguous memory allocation, which helps in efficient use of memory and simplifies the management of memory fragmentation.

Describe the concept of demand paging in virtual memory management.

Demand paging loads pages into memory only when they are needed, reducing memory usage and improving system responsiveness.

What is FIFO page replacement, and how does it differ from LRU page replacement?

FIFO page replacement removes the oldest page in memory first, while LRU replaces the least recently used page.

Explain how the optimal page replacement algorithm works.

<p>Optimal page replacement replaces the page that will not be used for the longest period of time in the future.</p> Signup and view all the answers

What role does counting-based page replacement play in managing memory?

<p>Counting-based page replacement uses a reference count to track page usage, allowing the system to replace pages that are least frequently used.</p> Signup and view all the answers

Flashcards

Contiguous Memory Allocation

Allocating memory in a single, continuous block.

Paging

Dividing memory into fixed-size blocks called pages.

Demand Paging

Loading pages into memory only when needed.

Page Replacement

Choosing a page to remove from memory when a new page needs to be loaded.

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FIFO Page Replacement

Replacing the page that has been in memory the longest.