1Z0-1123-25 Question 127
Select 2You are designing a Full Stack Disaster Recovery solution in Oracle Cloud Infrastructure (OCI) for a mission-critical e-commerce application. This application includes an Autonomous Database (ADB), a public Load Balancer, and container-based microservices hosted on Container Engine for Kubernetes (OKE). The business requires minimal downtime and a smooth failover from the primary to a secondary region in case of a disaster. Which two considerations are correct for designing and implementing your OCI Full Stack DR solution?
- A
You must configure OCI Full Stack DR to orchestrate all tiers in the same switchover plan, including the database, networking, and microservices.
- B
Autonomous Database does not support Data Guard, so you must instead rely on block volume cross-region replication for database failover.
- C
You should create corresponding OKE clusters in the secondary region and include their microservices deployments in the switchover group.
- D
To reduce complexity, you should orchestrate only the database in the OCI Full Stack DR plan and manually fail over the load balancer and microservices.
Show answer and explanation
Correct answers: A, C
Explanation
OCI Full Stack DR enables a coordinated failover across all layers of an application. For Autonomous Database, Oracle recommends using Autonomous Data Guard to keep the secondary database in sync. OCI Full Stack DR also integrates with other OCI services such as OKE, Load Balancer, and networking to ensure that the entire application stack is replicated and ready to fail over in a single, orchestrated step. Refer to Oracle� official documentation on Full Stack Disaster Recovery for detailed configuration steps and best practices: https://docs.oracle.com/en-us/iaas/Content/disaster-recovery/Concepts/full-stack-disaster-recovery-overview.htm
- A. Correct.
Option 1 is CORRECT. OCI Full Stack DR allows you to include each layer of your application within a single switchover plan�this ensures end-to-end orchestration of compute, networking, database, and other resources. Keeping everything in the same plan is crucial for minimizing downtime.
- B. Incorrect.
Option 2 is INCORRECT. Autonomous Database supports Autonomous Data Guard (formerly known as Autonomous Database Data Guard) for managed replication and failover. You do not rely solely on block volume replication for ADB failover scenarios.
- C. Correct.
Option 3 is CORRECT. For a Kubernetes-based application tier, you must have a corresponding OKE environment set up in the secondary region, including all related microservices. These should be part of the automated failover plan in OCI Full Stack DR.
- D. Incorrect.
Option 4 is INCORRECT. If you only orchestrate the database and leave the load balancer and microservices out, you would risk significant downtime and complexity during disaster events. The whole stack (database, network components, microservices) should be part of the DR plan for consistent failover.