Practice Summary Of Key Concepts (6.12) - Cache Memory and Its Impact on System Performance
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Summary of Key Concepts

Practice - Summary of Key Concepts

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is cache memory?

💡 Hint: Think about memory that helps the CPU access data faster.

Question 2 Easy

Define cache hit rate.

💡 Hint: It's a measure of how well the cache is performing.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of cache memory?

To store rarely used data
To enhance access speed to frequently accessed data
To eliminate the need for RAM

💡 Hint: Focus on the role cache plays in relation to the CPU.

Question 2

True or False: A higher hit rate indicates a better performing cache.

True
False

💡 Hint: Think about the efficiency of data retrieval.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Suppose you have a system with a cache that achieves a 90% hit rate. If the average memory access time is 10 ns for hits and 50 ns for misses, what is the average memory access time?

💡 Hint: Be careful to calculate the hit and miss percentages correctly!

Challenge 2 Hard

Evaluate how changing a write policy from write-back to write-through may impact system performance, especially in a heavily loaded server environment.

💡 Hint: Consider trade-offs between consistency and performance.

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Reference links

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