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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a cache hit?
💡 Hint: Think about what happens when data is accessed successfully.
Question 2
Easy
Define cache miss.
💡 Hint: Consider what happens when data must be fetched from another source.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a cache hit indicate?
- Data was not found
- Data was found
- Data is being retrieved
💡 Hint: What is the main characteristic of a cache hit?
Question 2
Cache misses lead to longer access times. True or False?
- True
- False
💡 Hint: Think about the process following a cache miss.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a CPU with a cache that has a hit ratio of 80%. If there are 1,000 memory accesses, how many of those will result in cache hits? How many will be misses?
💡 Hint: Calculate 80% of the total accesses for hits, and subtract from the total for misses.
Question 2
A new caching algorithm has increased the hit ratio from 70% to 85%. If the memory access time for hits is 1ns and misses 20ns, what is the overall average access time before and after the update?
💡 Hint: Use the formula: average access time = (time for hits * hit ratio) + (time for misses * miss ratio).
Challenge and get performance evaluation