1Z0-1151-25 Question 101
Select 2Your organization hosts an Oracle Database in Microsoft Azure and requires near-zero data loss plus automatic failover to a standby database deployed in Oracle Cloud Infrastructure (OCI). They have already implemented a secure interconnect between Azure and OCI. Which two steps are recommended to achieve these high availability and disaster recovery objectives using Oracle Data Guard?
- A
Implement synchronous redo transport over the Azure-OCI Interconnect for the Data Guard setup.
- B
Place the Data Guard observer on the same Azure VM hosting the primary database to reduce complexity.
- C
Configure Fast-Start Failover (FSFO) with an observer in a separate region for automatic failover.
- D
Use only daily RMAN backups to Azure Blob Storage for disaster recovery.
Show answer and explanation
Correct answers: A, C
Explanation
Oracle Data Guard is recommended for cross-cloud high availability and disaster recovery between Microsoft Azure and Oracle Cloud Infrastructure. Synchronous redo transport (often over a dedicated Interconnect) ensures near-zero data loss, while Fast-Start Failover with an external observer provides automatic, rapid failover. For detailed guidance, refer to Oracle� official Data Guard documentation and the Oracle-validated reference architectures for cross-cloud deployments.
- A. Correct.
Option 1 is correct. Synchronous redo transport ensures near-zero data loss by requiring the standby database in OCI to acknowledge each transaction before committing in Azure. This meets the requirement of minimal data loss.
- B. Incorrect.
Option 2 is incorrect. Running the observer on the same VM as the primary database introduces a single point of failure. If the primary site goes down, the observer also becomes unavailable, defeating the purpose of automatic failover.
- C. Correct.
Option 3 is correct. Configuring Fast-Start Failover with an observer in a separate region or environment is a best practice for seamless automatic failover. It avoids dependencies on a single region and enables quick failover when the primary database becomes unavailable.
- D. Incorrect.
Option 4 is incorrect. While RMAN backups are essential for data protection, using only daily backups does not provide near-zero data loss or automatic failover. Backups alone are insufficient for a high availability strategy.