Oracle Cloud Infrastructure 2022 Architect Professional — Question 15

You are responsible for a web application deployed on a set of compute VM instances in Oracle Cloud Infrastructure (OCI). Your application stores data on block volumes.
In production, the business requirement is a Recovery Point Objective (RPO) of two hours and that data should be recoverable in case of a regional failure.
How would you meet the RPO requirement in the event of a failure?

Answer options

• A. Create a user-defined storage backup policy and attach a schedule of type "Hourly" and automatically copy to another region. Apply this policy to a volume group containing the block volumes.
• B. Store hourly block volume backups to an NVMe device attached to a compute instance in a different Availability Domain (AD).
• C. Configure your application to use synchronous primary-secondary data replication between ADs.
• D. Set up cross-region volume replication to replicate the block volumes to a different OCI region.

Correct answer: C

Explanation

The correct answer is C because synchronous primary-secondary data replication ensures that data is consistently replicated in real-time, meeting the RPO requirement during regional failures. Option A, while creating backups, does not guarantee real-time data replication. Option B does not provide a method for maintaining data consistency across regions, and option D, although useful for redundancy, does not meet the immediate RPO requirement as effectively as synchronous replication.