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Mr. Dubey • 56.32K Points
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Q. The copy-back protocol is used

(A) to copy the contents of the memory onto the cache
(B) to update the contents of the memory from the cache
(C) to remove the contents of the cache and push it on to the memory
(D) none of the mentioned
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Explanation by: Mr. Dubey 
 this is another way of performing the write operation, wherein the cache is updated first and then the memory.

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