Containers
RecognitionAmazon ECR
Managed container image registry used by repeatable build and deployment workflows.
Key points
- ECR stores versioned container images used by Batch, ECS, or EKS processing workloads.
- Image provenance, scanning, tags or digests, repository access, and promotion belong to the delivery design.
Best-known use cases
- Store versioned images for containerized ETL jobs.
- Supply trusted processing images to Batch, ECS, or EKS deployments.
What candidates often confuse it with
- ECR is an image registry, not the runtime that schedules or executes the container.
Key takeaway
Use ECR as the controlled source of processing images for container-based data jobs.
Relevant exam tasks
- D1.2 — Task 1.2: Transform and process data
- 1.2.1 — Optimize container usage for performance needs (for example, Amazon EKS, Amazon ECS).