Nutanix Certified Associate Practice Exam

Deduplication works with compression and what other feature to optimize capacity efficiency?

1. Erasure coding

2. Inline compression

3. Sequential writes

The correct answer is: Erasure coding

Deduplication optimizes capacity efficiency by eliminating redundant data, allowing for effective storage utilization. When combined with erasure coding, it enhances this efficiency further. Erasure coding is a method of data protection that breaks data into segments, encodes them, and spreads them across multiple locations. This not only provides redundancy and fault tolerance, but it also minimizes the amount of data that needs to be stored when combined with deduplication. Therefore, deduplication and erasure coding work hand in hand to significantly reduce the overall storage requirements while maintaining data integrity and availability. Inline compression, while related to optimizing storage, functions differently by compressing data as it is written, rather than focusing on eliminating redundancies. Sequential writes refer to the method of writing data in an ordered sequence, but they don’t directly influence the capacity efficiency in conjunction with deduplication in the same impactful way as erasure coding. Thus, the synergy between deduplication and erasure coding is what drives optimal capacity efficiency, making this combination the best choice.