Practice Clock Algorithm (second Chance) (19.3) - Approximate LRU Implementation

Practice: Clock Algorithm (Second Chance)

Lesson 19.3Approximate LRU Implementation

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6 sample questions

Question 1.
What is the primary purpose of the Clock Algorithm?
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Think about why memory management is needed.
Question 2.
How does the reference bit function?
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Remember how the algorithm decides on page replacement.
3Question 3.
What does the Clock Algorithm primarily utilize for managing page replacement?
- Reference Bits
- Physical Memory Size
- CPU Speed
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Consider what the algorithm tracks to make decisions.
4Question 4.
True or False: In the Clock Algorithm, a page with a reference bit of 1 will be immediately replaced.
- True
- False
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Think about the concept of 'second chances' in the algorithm.
Question 5.
Given a sequence of page requests and ten frames managed by the Clock Algorithm, calculate the number of page faults that occur. Assume frames are initially empty and list each step.
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Track how each request interacts with reference bits.
Question 6.
How would the modified clock algorithm behave significantly differently from the Clock Algorithm in a scenario involving a high number of dirty pages?
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Consider which pages are favored for replacement when faced with mixed types.

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