SG0-001 · Question #435
Which of the following technologies can help optimize capacity utilization when storing many versions of a large file with few changes in each revision of the file?
The correct answer is A. Block-level deduplication. To optimize capacity utilization when storing many versions of a large file with minor changes, block-level deduplication is the most effective technology.
Question
Which of the following technologies can help optimize capacity utilization when storing many versions of a large file with few changes in each revision of the file?
Options
- ABlock-level deduplication
- BFile-level deduplication
- CSingle instance storage
- DAsynchronous replication
How the community answered
(40 responses)- A80% (32)
- B10% (4)
- C8% (3)
- D3% (1)
Why each option
To optimize capacity utilization when storing many versions of a large file with minor changes, block-level deduplication is the most effective technology.
Block-level deduplication identifies and stores only the unique data blocks across multiple files or versions, even if only small portions of a file have changed. For large files with few changes in each revision, this technology is highly efficient as it avoids storing redundant blocks that remain unchanged between versions, significantly optimizing storage capacity.
File-level deduplication only removes entire duplicate files; it would not optimize space for different versions of a file that have even minor changes.
Single instance storage typically refers to storing a complete object or file only once, which would not optimize space for multiple versions with small changes.
Asynchronous replication is a data protection strategy for disaster recovery and does not inherently optimize storage capacity by eliminating duplicate data.
Concept tested: Data deduplication techniques
Source: https://learn.microsoft.com/en-us/windows-server/storage/data-deduplication/overview
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