Practice Page Table (6.4.4) - Memory System Organization - Computer Architecture
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Page Table

Practice - Page Table

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Practice Questions

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Question 1 Easy

What is the purpose of a page table in a virtual memory system?

💡 Hint: Think about how programs access memory.

Question 2 Easy

What does a valid bit in a PTE indicate?

💡 Hint: Consider what happens if the page isn't in memory.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the utility of a Page Table in a virtual memory system?

To convert physical addresses to virtual addresses
To map virtual addresses to physical addresses
To store data permanently

💡 Hint: Consider the direction of the mapping needed for virtual to physical representation.

Question 2

True or False: A dirty bit in a PTE indicates that a page has not been modified since it was loaded into RAM.

True
False

💡 Hint: What happens if a page has been edited?

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Challenge Problems

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Challenge 1 Hard

Explain how the VM system decides which frame to replace when a page fault occurs. Discuss the potential consequences of using FIFO vs. LRU algorithms in this context.

💡 Hint: Consider the role of the dirty bit and memory access history in these algorithms.

Challenge 2 Hard

Considering a virtual memory system with a run of loops that sequentially access pages A, B, C, what issues would arise in a page table with poorly designed page replacement algorithms under a low physical frame limit?

💡 Hint: Think about how memory locality is impacted by frame availability and replacement policies.

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