Question: Suppose your system uses 3 levels of cache, and while accessing an instruction the CPU needs to retrieve it from main memory. How many memory

Suppose your system uses 3 levels of cache, and while accessing an instruction the CPU needs to retrieve it from main memory. How many memory accesses (main memory and cache) happened in the course of fetching this instruction? Consider both reading memory as well as when memory needs to be written. That is, consider both directions.

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