CompTIA Cloud+ (CV0-004)DeploymentMedium
A cloud engineer is designing a new storage solution for an application that processes large volumes of data. The data is initially accessed frequently for a few days, then less frequently for several weeks, and finally rarely, but must be retained for compliance for five years. The engineer wants to optimize costs by automatically moving data between different storage classes based on access patterns. Which storage strategy should be implemented?
- AData Replication
- BSnapshots
- CData Deduplication
- DStorage Tiering
Show answer & explanationAnswer & explanation
Correct answer: D. Storage Tiering
Storage tiering (or data lifecycle management) automatically moves data between different storage classes (tiers) based on predefined policies, such as age or access frequency. This allows optimizing storage costs by placing frequently accessed data in high-performance, higher-cost tiers and moving less frequently accessed data to lower-cost archival tiers.
Why the other options are wrong
- A. Data replication creates multiple copies of data for fault tolerance and availability, not for cost optimization based on access patterns.
- B. Snapshots are point-in-time copies of data used for backup and recovery, not for automatic cost optimization based on data access frequency over time.
- C. Data deduplication removes redundant copies of data to save storage space, not to manage data lifecycle based on access patterns.
Storage Tiering
A data management strategy that automatically moves data between different storage classes or 'tiers' based on predefined policies, typically related to access frequency, performance requirements, and cost.
- Optimizes storage costs by matching data value to storage cost.
- Utilizes different storage classes (e.g., hot, warm, cold, archive).
- Automated policies manage data movement.
Memory trick: Tiering saves money by moving data, Replication protects, Dedupe shrinks, Snapshots recover.