1Z0-1123-25 Question 11
Select 2An organization is preparing to migrate a large e-commerce platform from an on-premises data center to Oracle Cloud Infrastructure (OCI). The system consists of multiple microservices and a high-traffic database supporting real-time transactions. To minimize downtime and ensure a successful go-live, which TWO tasks should be included as part of the organization� fundamental cloud migration strategy?
- A
Perform a thorough application dependency mapping to identify prerequisites and interdependencies
- B
Completely re-architect the microservices around an event-driven model before starting migration
- C
Plan a data replication approach using OCI database migration tools to reduce cutover downtime
- D
Shut down all on-premises systems immediately to expedite the move
- E
Use Oracle Container Engine for Kubernetes (OKE) right away to manage all microservices
Show answer and explanation
Correct answers: A, C
Explanation
Fundamental cloud migration best practices emphasize thorough discovery (including application dependency mapping) and robust data replication strategies to minimize downtime. Oracle Cloud Infrastructure (OCI) provides various services for data migration, including OCI Database Migration and Data Transfer solutions, which enable seamless replication and cutover. By focusing on dependencies and data replication, organizations ensure that mission-critical workloads remain highly available throughout the migration process. For more details, see Oracle� official documentation on migrating databases to OCI.
- A. Correct.
Performing a thorough application dependency mapping is a fundamental step. It enables you to identify and manage all interdependencies between services, databases, and external components, reducing risk and ensuring a smooth migration.
- B. Incorrect.
While re-architecting the microservices might provide long-term benefits, it is not necessarily a core requirement to begin the migration. In many cases, a successful move is possible with minimal changes, and re-architecture can happen incrementally later.
- C. Correct.
Planning a data replication approach�leveraging OCI database migration or other replication methods�helps keep data in sync and minimize cutover downtime, which is critical for high-traffic, real-time databases.
- D. Incorrect.
Shutting down on-premises systems immediately creates unnecessary risk and downtime. Properly planning and coordinating cutover times, including running parallel environments, is crucial for minimal disruption.
- E. Incorrect.
Choosing a container orchestration solution like OKE right at the start might not be essential unless the application is already containerized or re-architecture is part of the initial plan. It can be introduced later once a stable migration path is confirmed.