Practice Cache Memory (4.5) - Direct-mapped Caches: Misses, Writes and Performance
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Cache Memory

Practice - Cache Memory - 4.5

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the purpose of cache memory?

💡 Hint: Think about CPU speed.

Question 2 Easy

Define hit ratio.

💡 Hint: Think about successful data retrieval.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does a cache hit indicate?

Data is retrieved from main memory
Data is retrieved from cache
Data is lost

💡 Hint: Think about the quickest way to access data.

Question 2

True or False: Cache memory is slower than main memory.

True
False

💡 Hint: Consider the purpose of cache.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A system has a cache that holds 64 blocks and a main memory of 1024 blocks. If each block in the main memory can fit into one unique cache line, determine the hit ratio if 250 requests are made and 200 are hits.

💡 Hint: Recall the formula for hit ratio.

Challenge 2 Hard

Consider a cache memory with 16 cache lines and a block size of 4 words per cache line. Calculate how many bits of memory are allocated for the tag if the main memory has an address space of 32 bits.

💡 Hint: Use the size of cache and block size.

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Reference links

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