1Z0-1123-25 Question 100
Single answerA large e-commerce company has multiple on-premises microservices they wish to containerize and migrate to Oracle Cloud Infrastructure (OCI). As part of their migration plan, they want to set up the Oracle Container Registry (OCIR) for storing container images and use Oracle Kubernetes Engine (OKE) for orchestrating these services. During which migration phase should they focus on creating and refining their container images, pushing them to OCIR, and establishing the CI/CD pipelines needed for ongoing updates?
- A
Assessment and Planning
- B
Build and Configure
- C
Migrate and Validate
- D
Optimize and Operate
Show answer and explanation
Correct answer: B
Explanation
In an OCI workload migration plan for containerized applications, the Build and Configure phase typically includes containerizing existing services, setting up development pipelines, and configuring Oracle Container Registry (OCIR) for storing images. This phase lays the groundwork for subsequent migration, validation, and operational optimization. For more information, refer to the official Oracle documentation on migrating containerized workloads to OCI, which details tasks and best practices at each phase of the migration process.
- A. Incorrect.
Assessment and Planning � This phase involves identifying existing workloads, gauging resource requirements, and determining the most suitable OCI services. While it may include preliminary decisions about containerizing workloads, it does not encompass the hands-on process of building container images or setting up registries and CI/CD pipelines.
- B. Correct.
Build and Configure � This phase includes the technical tasks of containerizing applications, configuring the OCI environment (e.g., setting up OCIR and OKE), and putting together CI/CD pipelines. It is the most appropriate phase for the specific tasks mentioned in the question, such as creating and refining container images and pushing them to the Oracle Container Registry.
- C. Incorrect.
Migrate and Validate � In this phase, actual data migration, moving container images to OCI, deploying to OKE, and conducting functional tests occur. Although container images are used here, the main concern is ensuring that the workloads function correctly in the cloud environment. The creation and setup of images and registries should largely be completed prior to this stage.
- D. Incorrect.
Optimize and Operate � After workloads are successfully running in OCI, this phase focuses on performance tuning, continuous monitoring, cost optimization, and scaling strategies. Setting up CI/CD pipelines might continue here in an iterative fashion, but the foundational tasks of building images and configuring registries would already be established.