Assess learners' ability to apply Docker containerization and Docker Compose to package and deploy a multi-service web application: design Dockerfiles (including multi-stage builds), author a docker-compose.yml to define services, networks, volumes, environment variables, ports, healthchecks and dependencies, demonstrate scaling and registry pushes, and explain troubleshooting steps and best practices for security and CI/CD integration. Tasks should require constructing configuration snippets, justifying design choices (build contexts, image tagging, secrets handling), and identifying fixes for common runtime and orchestration issues.