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What is the difference between Write-Through and Write-Back Caches? Explain advantages and disadvantages of each?

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Answer:

Writing in cache is possible through two method. 1. Write back-update the cache memory along with main memory. 2. Write through-writing in cache only, equivalent copy is produce in main memory, when word is not updated from a long time.

Writing in cache is possible through two method. 1. Write back-update the cache memory along with main memory. 2. Write through-writing in cache only, equivalent copy is produce in main memory, when word is not updated from a long time.

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Cache Size is 64KB, Block size is 32B and the cache is Two-Way Set Associative. For a 32-bit physical address, give the division between Block Offset, Index and Tag.Explain What is a cache?