Oracle Cloud Infrastructure 2020 Architect Professional — Question 46

All three Data Guard configurations are fully supported on Oracle Cloud Infrastructure (OCI). You want to deploy a maximum availability architecture (MAA) for database workload.
Which option should you consider while designing your Data Guard configuration to ensure best RTO and RPO without causing any data loss? (Choose the best answer.)

Answer options

• A. Configure "Maximum Availability" mode in SYNC mode between two availability domains (same region), and use the Maximum Availability mode in ASYNC mode between two regions.
• B. Configure "Maximum Protection" mode which provides zero data loss if the primary database fails.
• C. Configure "Maximum Scalability" mode which provides the highest level of scalability without compromising the availability of the primary database.
• D. Configure "Maximum Performance" mode in SYNC mode between two availability domains (same region) which provides the highest level of data protection that is possible without affecting the performance of the primary database.

Correct answer: A

Explanation

The correct answer is A because it combines 'Maximum Availability' mode in SYNC for low latency within a region and ASYNC for cross-region failover, ensuring the best RTO and RPO without data loss. Option B focuses solely on zero data loss but may not provide the best RTO in all scenarios. Option C prioritizes scalability over availability, which may not meet the requirements. Option D offers high data protection but may compromise performance, making it less suitable for maximum availability.