1Z0-1123-25 Question 101
Select 2A retail company has a suite of microservices running on containers in its on-premises environment. They plan to migrate these workloads to Oracle Cloud Infrastructure (OCI), specifically leveraging Oracle Container Engine for Kubernetes (OKE) and OCI Registry. The team wants to ensure a seamless transition with minimal downtime. Which two phases should they include in their migration plan to effectively handle container images, networking, and testing before rolling out to production?
- A
Perform a detailed assessment of existing container images, resource requirements, and OCI networking prerequisites
- B
Migrate container images directly into production OKE clusters without a staging environment
- C
Upload container images to OCI Registry and implement image scanning to ensure security compliance
- D
Omit performance and functionality tests in OCI to expedite the overall migration
Show answer and explanation
Correct answers: A, C
Explanation
In a typical containerized workload migration to OCI, organizations should follow a phased approach that includes proper discovery and assessment, design, image security validation, testing, and rollout. Oracle recommends assessing existing containers and dependencies, migrating validated images safely to OCI Registry, and thoroughly testing workloads on staging or development clusters before final production deployment. For more details, refer to the Oracle Container Engine for Kubernetes documentation and OCI Best Practices for container migration.
- A. Correct.
Option 1 is correct. As part of the initial phases, it is critical to assess current container images, resource requirements (CPU, memory), and networking dependencies (subnets, security rules) to properly size and configure OKE clusters, ensuring a stable migration plan.
- B. Incorrect.
Option 2 is incorrect. Migrating directly to production without a staging or development environment is risky. It bypasses critical validation and can introduce unforeseen issues that impact end users and hamper a smooth migration.
- C. Correct.
Option 3 is correct. Uploading container images to OCI Registry and conducting image scans are important steps to maintain security and compliance, especially in the design and build phases. This practice also helps verify that images meet organizational and OCI requirements.
- D. Incorrect.
Option 4 is incorrect. Skipping performance and functionality tests can lead to undetected issues during production rollout. Proper testing in OCI ensures application stability and helps teams catch performance bottlenecks, bugs, or misconfigurations early.