Nutanix Certified Associate Practice Exam

For a VM that generates large sequential writes and requires space savings over long-term data retention, which feature should be utilized?

1. Cache Dedup

2. Flash Mode

3. Inline Compression

4. Post-Process Compression

The correct answer is: Post-Process Compression

Utilizing post-process compression for a virtual machine (VM) that generates large sequential writes and requires space savings over long-term data retention is advantageous due to the way this feature operates. Post-process compression allows the system to first write the data to storage before applying compression algorithms, which means that the data is captured in its original form before any transformations. This approach can be particularly efficient for large sequential writes, as the data can be optimized after it is written, thereby maximizing the compression ratio on large data sets. Additionally, since the focus here is on long-term data retention, post-process compression enables flexibility in how data is managed over time. It can handle vast amounts of data more effectively, as it can review the entire dataset and apply higher rates of compression without affecting the immediate performance of write operations. This is important for workloads that may need to prioritize write performance initially but require efficient storage utilization over the long term. In contrast, other features may be better suited for different scenarios. Cache Dedup may focus on reducing redundancy in frequently accessed data, while Inline Compression works during writes, which could potentially introduce performance overhead for workloads that are write-heavy and sequential. Flash Mode optimizes performance for high-speed access, but doesn't necessarily address the long-term storage efficiency of