Docker Certified Associate (DCA)

Containers, images, networking, volumes, Compose, Swarm, and security — 40 scenario questions with AI analysis.

Legacy DCA exam prep — replaced by Docker Fundamentals above.

Build your first Dockerfile and understand image layers.

Multi-container applications with Docker Compose.

Deploy and manage services with Docker Swarm.

Configure bridge, overlay, and custom networks.

Manage data with volumes, bind mounts, and tmpfs.

Implement security best practices and hardening.