1Z0-1072-25 Question 3
Select 2Your analytics team needs to run a high-throughput data processing job on Oracle Cloud Infrastructure (OCI). You decide to use a VM shape that includes ephemeral local NVMe disks to achieve faster input/output (I/O) performance for intermediate data processing. However, you must also ensure that final results are not lost if the compute instance fails or is replaced. Which two steps should you take to meet these requirements?
- A
Attach a persistent block volume and periodically copy or sync final results from ephemeral local NVMe to that block volume.
- B
Configure ephemeral local NVMe disks to replicate automatically across multiple Availability Domains using native OCI features.
- C
Take snapshots of ephemeral local NVMe disks using the built-in snapshot functionality and restore them if the instance fails.
- D
Copy or move your final outputs from the ephemeral local NVMe disks to Object Storage or block volumes upon completion of the job.
Show answer and explanation
Correct answers: A, D
Explanation
Ephemeral local NVMe disks in OCI provide high-performance local storage but are not designed for persistent data. To ensure your outputs remain intact if the instance fails or is replaced, you must copy or replicate critical information to a more durable storage option, such as a block volume or Object Storage, before terminating or rebooting the instance. Refer to OCI documentation on ephemeral local NVMe and block volumes for best practices on data protection and storage durability.
- A. Correct.
Correct. Ephemeral local NVMe provides ultra-fast local storage but does not persist data if the instance is stopped or deleted. Attaching a persistent block volume and periodically copying your important data ensures it is retained independently of the underlying ephemeral storage.
- B. Incorrect.
Incorrect. Ephemeral local NVMe data is not replicated automatically by OCI, and there is no built-in feature to mirror ephemeral data across Availability Domains.
- C. Incorrect.
Incorrect. No snapshot feature exists for ephemeral local NVMe disks. Snapshots are only supported for block volumes. Ephemeral local NVMe storage content is lost if the instance fails or is terminated.
- D. Correct.
Correct. Object Storage or a persistent block volume is ideal for long-term or final data storage. Copying your results after processing is the safest way to avoid data loss when using ephemeral storage.