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Answer the following two questions about cache types. a. A direct-mapped cache has a lower hit...

Answer the following two questions about cache types.

a. A direct-mapped cache has a lower hit rate than any form of cache with some form of associativity. Why?

b. In spite of this, we tend to prefer direct-mapped caches at least for our on-chip caches. What are two advantages of a direct-mapped cache over a cache with some form of associativity?

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