Practice Search Mechanism In Circular List (19.3.2) - Approximate LRU Implementation
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Search Mechanism in Circular List

Practice - Search Mechanism in Circular List

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the reference bit indicate?

💡 Hint: Think about access tracking.

Question 2 Easy

Describe FIFO in the context of page replacement.

💡 Hint: Consider how you might line up data in sequence.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of a reference bit?

To track if a page is dirty
To indicate access to a page
To count page faults

💡 Hint: Consider how the system keeps track of memory.

Question 2

Is the FIFO algorithm optimal in all situations?

True
False

💡 Hint: Think about when you'd want to keep a page.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A system uses the second chance algorithm for page replacement with pages A, B, C, D, and E. If A and C have their reference bits set, which one gets evicted when memory is full?

💡 Hint: Consider which pages have been given chances already.

Challenge 2 Hard

If you have a page access pattern of A, B, C, D, A, B over a series of accesses with a maximum of 3 pages in memory, how many page faults occur with FIFO and sampled LRU?

💡 Hint: Think about the differences in how pages are tracked.

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