Docker Certified Associate (DCA) Practice Test
Build your confidence for Docker Certified Associate (DCA). Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
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
Choose an answer and explore the explanation to see how practice works.
Which command shows live event stream from the Docker daemon (container start/stop, image pull, etc.)?
To make 'docker service create' use a node-private port instead of the ingress mesh, which publish syntax is used?
What is the difference between a 'replicated' and a 'global' service in Swarm?
Per-container disk usage of writable layer can be inspected with which command?
You see in 'docker system df' that 'Build Cache' uses 40 GB. How do you reclaim it without removing images?
Career Opportunities & Salary
Exam insights and study advice
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.
What this exam covers
01Advanced Topics
Advanced concepts and techniques
02Best Practices
Industry best practices and standards
03Core Knowledge
Essential knowledge areas
04Fundamentals
Basic concepts and principles
05Practical Application
Real-world application of concepts