Docker Certified Associate (DCA) Practice Test
Docker certification covering container basics, image management, networking, orchestration, storage, security, and Docker Enterprise operations. Administered by Docker as a linear (online proctored) format exam. Key domains include Advanced Topics, Best Practices, Core Knowledge and Fundamentals. The exam consists of 55 questions over 90 minutes.
Sample Questions
Try a few questions to see what the full exam is like.
You run 'docker run --privileged ubuntu'. What is the effect?
Difference between 'always' and 'unless-stopped' restart policies?
Difference between '-v /data:/data' and '--mount type=bind,source=/data,target=/data'?
You want every container to default to a max of 1 CPU and 512 MB memory unless explicitly set. Which Docker feature is appropriate?
Which command shows live event stream from the Docker daemon (container start/stop, image pull, etc.)?
Career Opportunities & Salary
Why This Certification Opens Doors
In the real world, Docker is foundational to microservices architectures, CI/CD pipelines, and scalable cloud deployments. This certification matters because it moves beyond theoretical knowledge to prove you can execute the tasks required to build, ship, and run secure, resilient applications. Employers value the DCA as it signals an engineer can contribute immediately to container-based projects, reducing operational risk and increasing team efficiency. It provides a concrete benchmark for skills that are directly applicable to production environments, making certified professionals key assets in digital transformation initiatives.
Recommended
These are the backgrounds the certifying body suggests. Check the vendor's own page for anything it formally requires.