1Z0-1123-25 Question 35
Select 2Your company is migrating a multi-tier eCommerce application from an on-premises data center to Oracle Cloud Infrastructure using Oracle Cloud Migrations Service. The application includes a front-end load balancer, multiple interdependent virtual machines, and an Oracle Autonomous Database instance. To minimize downtime and ensure data consistency, you want to handle all interdependent services in a coordinated way. Which two steps should you take to ensure a successful migration using Oracle Cloud Migrations Service?
- A
Group VMs with service dependencies in migration waves and validate interdependencies through Oracle Cloud Migrations Service.
- B
Run pre-migration validation to confirm that all relevant network configurations are recognized and properly mapped.
- C
Migrate each VM independently to avoid complex migration wave scenarios and reduce potential downtime.
- D
Rely entirely on manual scripts for data replication instead of Oracle Cloud Migrations Service� built-in replication mechanism.
Show answer and explanation
Correct answers: A, B
Explanation
When migrating complex, interdependent applications, Oracle Cloud Migrations Service can discover application dependencies and group them into waves. This approach coordinates the migration of related resources, preserving data integrity and service continuity. A thorough pre-migration validation step ensures critical settings (such as network configurations and security lists) are properly mapped. For best practices, consult the Oracle Cloud Migrations Service documentation on wave planning, integration checks, and replication to ensure a smooth migration with minimal downtime.
- A. Correct.
Correct. Oracle Cloud Migrations Service allows creating migration waves that group interdependent virtual machines to prevent downtime or synchronization issues. By leveraging service-provided discovery and grouping, you ensure that resources with dependencies move together.
- B. Correct.
Correct. Pre-migration validation ensures that all relevant network and resource configurations are recognized and appropriately set up in the target environment. This step helps avoid issues related to connectivity, security rules, or missing dependencies.
- C. Incorrect.
Incorrect. Migrating each VM separately without respect to its dependencies often causes service interruptions and potential data corruption. The recommended approach is to group interdependent resources to synchronize their cutover times.
- D. Incorrect.
Incorrect. While manual scripts can supplement certain tasks, relying on them entirely bypasses Oracle Cloud Migrations Service� built-in replication and incremental sync features. This could lead to more complex, error-prone migration procedures.