Study Hub / Docker Certified Associate (DCA)
Docker Certified Associate (DCA): Free Study Previews
The Docker Certified Associate (DCA) validates Docker skills across six domains. This hub previews four domains free — the Practice Exam Simulator covers all six — $9.99 one-time for all 28 exams.
Free domain previews
Domain 2.0, 20% of exam
Domain 2.0: Images & Registry
DCA Domain 2.0 explained in plain English: Dockerfiles, image layers, tags, and registry concepts.
Domain 3.0, 15% of exam
Domain 3.0: Installation & Configuration
DCA Domain 3.0 explained in plain English: Docker Engine setup, storage drivers, logging drivers, and daemon configuration concepts.
Domain 4.0, 15% of exam
Domain 4.0: Networking
DCA Domain 4.0 explained in plain English: Docker network drivers, bridge networks, overlay networks, and port publishing concepts.
Domain 6.0, 10% of exam
Domain 6.0: Storage & Volumes
DCA Domain 6.0 explained in plain English: Docker volumes, bind mounts, tmpfs, and storage lifecycle concepts.
Ready for the full exam?
This hub is a free preview: it covers 4 of 6 domains (Images & Registry, Installation & Configuration, Networking, Storage & Volumes) — see "What's not here" above for what stays paid. The ByteBar Practice Exam Simulator drills every domain with 1,000 exam-style questions — $9.99 one-time unlocks all 28 exams. Prefer to read? The full DCA Study Guide is in the ByteBar shop on Etsy.
Practice Exam Simulator — $9.99 one-time, all 28 exams Full Study Guides on Etsy