Free DCA: Docker Certified Associate Exam Questions and Answers
Docker Certified Associate is part of the Docker Certified Associate programme from Mirantis. Mirantis acquired Docker's enterprise business — Docker Engine Enterprise, Trusted Registry and Universal Control Plane — on 13 November 2019, and the Docker Certified Associate went with it. It is no longer offered: DCA appears nowhere on Mirantis's current product, training or blog pages. Mirantis published no dated retirement notice, so the honest description is that it lapsed rather than closed on a particular day. Mirantis runs its own Kubernetes and container-platform training catalogue in its place.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 7, 2026
- Exam code
- DCA
- Provider
- Mirantis
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
You have deployed a Docker container running a web service. After a few days, the container is not responding. What should you do first?
Please select an optionIncorrectCorrect answer: D
Checking the container logs is the first step to diagnose what went wrong with the container.
Was this answer correct?Question #2
You want to ensure that your Docker containers are running only on certain nodes in your cluster. What could you use to achieve this?
Please select an optionIncorrectCorrect answer: C
Node selectors allow you to specify criteria for which nodes your containers can run on.
Was this answer correct?Question #3
If you need a persistent volume to store the database data generated by a container, which command would you use to create it?
Please select an optionIncorrectCorrect answer: D
The command 'docker volume create' is used to create a persistent volume in Docker.
Was this answer correct?Question #4
When using Docker Compose, which command initializes & starts containers in the background?
Please select an optionIncorrectCorrect answer: A
The command 'docker compose up' initializes and starts the containers defined in the docker-compose.yml file.
Was this answer correct?Question #5
You're attempting to connect to a running container. What command would you use to access a bash shell inside it?
Please select an optionIncorrectCorrect answer: A
'docker exec -it container_name /bin/bash' allows you to access an interactive shell inside a running container.
Was this answer correct?Question #6
You want to limit the CPU usage of a Docker container to 50%. Which flag should you use in your 'docker run' command?
Please select an optionIncorrectCorrect answer: A
The --cpus flag allows you to specify the number of CPUs a container can use.
Was this answer correct?Question #7
How do you ensure that your containers can communicate with each other in different services defined by Docker Compose?
Please select an optionIncorrectCorrect answer: D
Docker Compose automatically creates a network that allows containers to communicate with each other via service names.
Was this answer correct?Question #8
Which command would you run to see all running containers in your Docker instance?
Please select an optionIncorrectCorrect answer: C
The command 'docker ps' lists all currently running containers.
Was this answer correct?Question #9
What is the purpose of the Dockerfile?
Please select an optionIncorrectCorrect answer: C
The Dockerfile is a script with a series of commands that are used to build a Docker image.
Was this answer correct?Question #10
If you need to inspect the details of a specific container, which command would you use?
Please select an optionIncorrectCorrect answer: B
The 'docker inspect container_name' command returns detailed information about a particular container.
Was this answer correct?
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FAQ
Learn More: https://training.mirantis.com/certification/dca-certification-exam/
- Q1: What is the DCA: Docker Certified Associate exam?
- A: DCA: Docker Certified Associate is a Mirantis certification exam. Judging by the questions in our bank, it concentrates on docker, container, containers, dockerfile and compose.
- Q2: What topics does the DCA: Docker Certified Associate exam cover?
- A: Questions in our DCA: Docker Certified Associate bank cluster around docker, container, containers, dockerfile, compose, image, remove and flag. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for DCA: Docker Certified Associate?
- A: Work through the DCA: Docker Certified Associate practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real DCA: Docker Certified Associate exam questions?
- A: They are drawn from officially released past questions and from community members who have sat DCA: Docker Certified Associate. Answers are verified and updated weekly.
- Q5: Where do I register for the DCA: Docker Certified Associate exam?
- A: Register through Mirantis directly at https://training.mirantis.com/certification/dca-certification-exam/. Exampractice is not affiliated with Mirantis and does not administer the exam.
- Q6: Is there a free DCA: Docker Certified Associate sample?
- A: Yes. Every DCA: Docker Certified Associate page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are Mirantis Certification Exams?
- A: Mirantis Certification Exams validate your expertise in using and managing Mirantis’ cloud-native and open-source technologies, including Kubernetes, OpenStack, and Docker. These certifications demonstrate your proficiency in deploying, configuring, and optimizing Mirantis solutions to support scalable, efficient cloud infrastructures.
- Q8: Why should I pursue Mirantis Certification?
- A: Mirantis Certification enhances your professional credibility, showcasing your skills and knowledge in cloud-native technologies and infrastructure management. This can lead to better job opportunities, higher salaries, and career advancement in cloud computing, DevOps, and IT operations roles.
- Q9: What are the benefits of Mirantis Certification?
- A: Benefits include recognition as a certified cloud-native professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Mirantis technologies and best practices.
- Q10: Who should take Mirantis Certification Exams?
- A: Cloud engineers, DevOps professionals, system administrators, and anyone involved in managing and implementing cloud-native solutions using Mirantis technologies should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of Mirantis Certification Exams are available?
- A: Mirantis offers various certification paths, including:
- Q12: How do I prepare for Mirantis Certification Exams?
- A: Preparation can include official Mirantis training courses, study guides, practice exams, online tutorials, and hands-on experience with Mirantis products and solutions.
- Q13: Where can I take Mirantis Certification Exams?
- A: Mirantis Certification Exams can be taken online with remote proctoring, providing flexibility to fit your schedule and location.
- Q14: How do Mirantis Certifications impact my career?
- A: Mirantis Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in cloud computing, DevOps, and IT operations.
- Q15: Are there any prerequisites for Mirantis Certification Exams?
- A: Some exams may have prerequisites, such as foundational knowledge or prior experience with Mirantis technologies. Check the specific requirements for each certification path on the Mirantis website.
- Q16: How often do I need to recertify for Mirantis Certifications?
- A: Mirantis Certifications typically require recertification every two to three years to ensure that certified professionals stay updated with the latest technologies and industry practices.