McqMate
| 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 |
| Answer» B. to update the contents of the memory from the cache | |
| Explanation: this is another way of performing the write operation, wherein the cache is updated first and then the memory. | |
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