The Data Deduplication process increases disk performance by moving chunks of data to where?

The Data Deduplication process increases disk performance by moving chunks of data to where?

• A. Disk Cache
• B. The outer ring of the drive plate
• C. The Azure Cloud
• D. Memory

Answer: (D)

Data deduplication speeds up disk operations by using RAM to cache frequently accessed deduplicated chunks and their metadata, so most reads can be served from memory rather than hitting the slower disk. The deduplication process stores the actual unique chunks on disk, but keeps hot data and the mapping information in memory to reduce additional I/O and latency. That in‑RAM caching is what gives the noticeable disk performance improvement. The other options describe storage locations or caches that aren’t the mechanism used by deduplication to accelerate access.

Data deduplication speeds up disk operations by using RAM to cache frequently accessed deduplicated chunks and their metadata, so most reads can be served from memory rather than hitting the slower disk. The deduplication process stores the actual unique chunks on disk, but keeps hot data and the mapping information in memory to reduce additional I/O and latency. That in‑RAM caching is what gives the noticeable disk performance improvement. The other options describe storage locations or caches that aren’t the mechanism used by deduplication to accelerate access.