Practice Unit Summary (3.6) - Direct Mapped Cache Organization - Computer Organisation and Architecture

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10 questions

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6 sample questions

Question 1.
Define what a cache hit is.
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Think about where the data is being sought.
Question 2.
What does a cache miss signify?
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Consider what happens when data isn't found.
3Question 3.
What does a cache hit indicate?
- Data found in cache
- Data not found in cache
- Data being transferred
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Think about the result of asking the cache for data.
4Question 4.
True or False: Locality of reference impacts cache performance.
- True
- False
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Reflect on how programs access memory.
Question 5.
Given a cache that uses a direct mapping strategy, calculate how many cache lines would be needed if the total memory size is 64KB with block sizes of 8 bytes.
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First find how many blocks fit in the memory.
Question 6.
If accessing memory address 1000 returns a miss but the next address 1008 hits, describe what could have happened.
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Think about block sizes and how they relate to subsequent addresses.

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