1Z0-1067-25 Question 79
Select 2You manage a mission-critical multi-tier application on Oracle Cloud Infrastructure (OCI) that runs on a primary region, with a synchronized standby environment in a secondary region. The goal is to achieve minimal downtime with an automated failover in case of a region-wide outage. Which two steps are required to implement an end-to-end automated failover solution for both the database and the application� front-end traffic?
- A
Configure Oracle Data Guard on the primary database and enable Fast-Start Failover to automatically switch to the standby database.
- B
Set up an OCI DNS Traffic Management steering policy with health checks to automatically redirect traffic to the standby region in case of primary region failure.
- C
Rely solely on manual DNS record updates to switch front-end traffic to the standby region once you detect downtime in the primary region.
- D
Disable automatic backups in the primary region to reduce overhead and minimize the failover time.
Show answer and explanation
Correct answers: A, B
Explanation
To implement a robust automated failover in OCI, you need to address both the database layer and the application traffic layer. Enabling Fast-Start Failover through Oracle Data Guard ensures that your standby database can instantly assume the primary role when the primary fails. Meanwhile, an OCI DNS Traffic Management steering policy with health checks monitors the primary region� availability and automatically reroutes front-end requests to the standby region if the primary region is unreachable. Refer to the OCI documentation on Data Guard Fast-Start Failover and Traffic Management Steering Policies for detailed guidance.
- A. Correct.
Option 1: Correct. Oracle Data Guard with Fast-Start Failover ensures that if the primary database becomes unavailable, the standby database automatically takes over. This is a key component of automated failover for database services.
- B. Correct.
Option 2: Correct. Creating a Traffic Management steering policy in OCI DNS with active health checks allows user traffic to be automatically rerouted to your secondary region (standby) if the primary region fails. This ensures seamless failover for front-end traffic.
- C. Incorrect.
Option 3: Incorrect. Manual DNS updates introduce human intervention and delay. While this might work in simple environments, it is not automated and therefore fails to meet the requirement for fully automated failover.
- D. Incorrect.
Option 4: Incorrect. Disabling backups does not contribute to automated failover; it simply reduces data protection measures. Automated failover depends on failover mechanisms and traffic rerouting, not on disabling backups.