Practice Memory Address Structure For Cache (2.6.6) - Basics of Memory and Cache Part 2

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9 questions

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6 sample questions

Question 1.
What is a cache hit?
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Think about speed.
Question 2.
What does locality of reference mean?
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Consider where data is stored.
3Question 3.
What happens when a cache miss occurs?
- Data is found in cache
- Data must be retrieved from main memory
- Data is deleted from the cache
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Think about the retrieve process.
4Question 4.
True or False: Cache memory is the slowest form of memory in the hierarchy.
- True
- False
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Recall the hierarchy structure.
Question 5.
Given a cache memory with 8 lines, and main memory with 32 blocks. If you want to store block 15, which cache line would it map to? Sketch the mapping.
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Use the modulus operation for mapping.
Question 6.
With a main memory comprising 1 million addresses and each cache line storing 4 addresses, design a direct mapping table showing how many lines must be created.
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Remember to divide total addresses by addresses per line.

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