1Z0-1151-25 Question 23
Single answerYou are migrating a mission-critical application to Oracle Cloud Infrastructure (OCI). The application� back-end stores large amounts of data and requires consistent block-level performance. You also want to minimize the need for manual tuning or provisioning changes as workloads fluctuate. Which back-end storage option best meets these requirements?
- A
Use local NVMe-based storage on the compute instances for the back-end data layer
- B
Use OCI File Storage for the back-end data layer
- C
Use OCI Block Volumes with Automatic Performance Tuning enabled
- D
Use OCI Object Storage in the Archive tier
Show answer and explanation
Correct answer: C
Explanation
OCI Block Volumes equipped with Automatic Performance Tuning deliver the consistent block-level performance that transaction-heavy and mission-critical applications require. Unlike ephemeral local NVMe storage, block volumes remain persistent and are not lost when a compute instance terminates. OCI Block Volumes also provide snapshotting, replication, and other data protection features with minimal manual configuration. Refer to the latest OCI Block Volume documentation on performance tiers and automatic tuning for more details on best practices.
- A. Incorrect.
Local NVMe storage provides very high throughput, but it is ephemeral and tied to the lifecycle of the compute instance. If the instance fails or is terminated, the data is lost. This approach requires manual data backup and significantly increases operational overhead and risk.
- B. Incorrect.
OCI File Storage works well for shared file system scenarios but may not offer the same consistent performance characteristics and flexibility as block volumes for large-scale database workloads. It also has different performance tuning considerations.
- C. Correct.
OCI Block Volumes with Automatic Performance Tuning dynamically optimize volume performance based on demand without manual intervention. This approach provides block-level performance, high durability, and the ability to scale up or down automatically, making it ideal for mission-critical data repositories.
- D. Incorrect.
Object Storage in the Archive tier is intended for long-term data retention at a lower cost. It does not offer the immediate block-level performance needed for actively running a database or high-throughput application. Retrieval from Archive tier also introduces restoration delays.