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Docker DCA Exam Questions

Exam Name: Docker Certified Associate Exam
Exam Code: DCA
Related Certification(s): Docker Certified Associate Certification
Certification Provider: Docker
Number of DCA practice questions in our database: 191 (updated: Jun. 22, 2025)
Expected DCA Exam Topics, as suggested by Docker :
  • Topic 1: Orchestration: This section of the exam measures the skills of DevOps engineers and covers the configuration and management of Docker Swarm clusters. It includes tasks such as setting up manager and worker nodes, converting containers into services, and manipulating stacks. Candidates must understand the role of templates, inspect and troubleshoot running services, and adjust service scaling and placement using node labels. The section also requires interpreting docker inspect outputs and handling communication between Dockerized applications and legacy systems, emphasizing the importance of quorum in cluster resilience.
  • Topic 2: Image Creation, Management, and Registry: This domain assesses cloud infrastructure administrators and focuses on building, managing, and optimizing Docker images. It involves working with Dockerfiles, tagging, and pruning images, as well as understanding image layering and registry usage. Candidates must demonstrate image creation from files, modifications to reduce layers, and the ability to push, pull, and sign images. Registry configuration and management are also included, with tasks involving authentication, search, deletion, and secure access to stored images.
  • Topic 3: Installation and Configuration (15%): This section of the exam evaluates the capabilities of cloud infrastructure administrators and addresses Docker engine installation, setup, and configuration across multiple platforms. It includes tasks such as logging driver selection, swarm initialization, error resolution, and user access management. Candidates must demonstrate knowledge of system prerequisites, namespaces, cgroups, and the implementation of secure client-server certificate authentication. It also requires consistent deployment practices for Docker UCP and DTR environments, including backup scheduling and HA configurations.
  • Topic 4: Networking: This domain targets DevOps engineers and covers Docker networking fundamentals. It includes creating bridge and overlay networks, publishing ports, diagnosing connectivity issues, and understanding network driver types. Candidates are expected to comprehend the Container Network Model, configure external DNS, and apply HTTP/HTTPS load balancing techniques using Docker EE. Additional topics include evaluating traffic flow between Docker components and distinguishing between different port publishing modes like host and ingress.
  • Topic 5: Domain 5: Security: This part of the exam focuses on the knowledge of cloud infrastructure administrators and addresses Docker security configurations and practices. It covers image signing, security scans, Docker Content Trust, and default engine protections. Candidates must configure RBAC settings within UCP, integrate identity systems such as LDAP or Active Directory, and manage UCP client bundles. Understanding MTLS, swarm security defaults, and UCP/DTR certificate usage is essential to meet the requirements of this domain.
  • Topic 6: Domain 6: Storage and Volumes: This domain measures the practical storage configuration knowledge of DevOps engineers. It includes selecting appropriate storage drivers based on the OS, configuring devicemapper, and comparing object and block storage. Candidates must understand image layering and its implications on the file system, handle volume configuration for persistent storage, and perform system cleanup of unused images. Cross-node storage usage and differentiating roles between UCP workers and managers are also addressed, along with managing external certificates within UCP and DTR environments.
Disscuss Docker DCA Topics, Questions or Ask Anything Related

Jennifer

14 days ago
Docker certification in the bag! Pass4Success's practice tests were invaluable. Couldn't have prepped so quickly without them.
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Candida

1 months ago
How detailed were the questions on container resource management?
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Michell

2 months ago
Passed the Docker Certified Associate exam! Pass4Success's questions were a perfect match. Thanks for the speedy prep!
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Kaitlyn

2 months ago
Any questions on Docker plugins?
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Aide

3 months ago
Docker certification achieved! Pass4Success's materials were spot-on. Grateful for the quick and effective preparation.
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An

3 months ago
Did the exam cover Docker API?
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Huey

4 months ago
How about Docker networking modes?
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Alba

4 months ago
Aced the Docker exam! Pass4Success's practice questions were key to my success. Thanks for the efficient prep!
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Lynelle

4 months ago
Were there questions about Docker storage drivers?
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Brynn

5 months ago
Any advice on studying Docker orchestration?
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Thomasena

5 months ago
Just became a Docker Certified Associate! Pass4Success made my short prep time count. Their questions were crucial.
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Aileen

5 months ago
Did the exam cover Docker CLI commands in detail?
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Rosita

5 months ago
I passed the Docker Certified Associate Exam, and the Pass4Success practice questions were invaluable. A challenging question was about managing Docker images. It asked how to use Docker Hub and private registries to push and pull images. I was a bit uncertain but still passed the exam.
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Gracia

6 months ago
Were there any questions on Docker image management?
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Talia

6 months ago
Docker Certified Associate exam conquered! Pass4Success's questions were so similar to the real thing. Thank you!
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Lilli

6 months ago
How did you prepare for the exam? Any resources you'd recommend?
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Rory

6 months ago
Thrilled to have passed the Docker Certified Associate Exam! The Pass4Success practice questions were instrumental in my preparation. One question that puzzled me was about orchestrating services in Docker Swarm. It asked how to deploy a stack using a Compose file. I wasn't 100% sure but still managed to pass.
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Lorean

7 months ago
Any surprises on the exam that you didn't expect?
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Twana

7 months ago
Passed my Docker certification today! Pass4Success's practice tests were a lifesaver. Highly recommend for quick study.
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Zona

7 months ago
I successfully passed the Docker Certified Associate Exam, and the Pass4Success practice questions were a big help. There was a tough question on Docker networking. It asked how to create and manage user-defined networks and connect containers to them. I had to recall the specific commands but got through it.
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Jestine

7 months ago
What about Docker Swarm? How detailed were those questions?
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Justa

7 months ago
Excited to announce that I passed the Docker Certified Associate Exam! The Pass4Success practice questions were very useful. One question that caught me off guard was about Docker security. It asked how to configure Docker to use TLS for secure communication between the client and the daemon. I wasn't entirely sure but managed to pass.
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Vilma

8 months ago
Did you encounter any questions on Docker Compose?
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Cecilia

8 months ago
Docker Certified Associate: check! Pass4Success's exam questions were invaluable. Couldn't have done it without them!
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Rebbecca

8 months ago
I passed the Docker Certified Associate Exam, thanks to the Pass4Success practice questions. There was a question about installing Docker on different operating systems. It asked for the steps to install Docker on a Windows machine using Docker Desktop. I was a bit unsure about the exact steps but still succeeded.
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Carin

8 months ago
How about Docker security? What kind of questions should I expect?
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Cassie

9 months ago
Happy to share that I passed the Docker Certified Associate Exam. The practice questions from Pass4Success were a lifesaver. One challenging question was about persistent storage in Docker. It asked how to create and manage named volumes and bind mounts. I had to think hard about the differences but managed to get it right.
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Lashaunda

9 months ago
Whew, that Docker exam was tough! Grateful for Pass4Success - their materials helped me pass in record time.
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Chun

9 months ago
Congrats! I'm studying for it now. Any tips on Docker networking concepts? I heard there are several questions on that.
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Jose

9 months ago
Just cleared the Docker Certified Associate Exam! The Pass4Success practice questions were a great resource. There was a tricky question on creating Docker images using multi-stage builds. It asked how to minimize the final image size by using multiple FROM statements. I wasn't entirely confident in my answer, but I still made it through.
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Brittni

9 months ago
Pretty detailed! Study how to limit CPU and memory usage for containers, and understand cgroups. Practice setting resource constraints using Docker run commands.
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Daniela

10 months ago
I recently passed the Docker Certified Associate Exam, and I must say, the Pass4Success practice questions were incredibly helpful. One of the questions that stumped me was about setting up a multi-node Docker Swarm cluster. It asked about the specific commands needed to initialize the swarm and add worker nodes. I was unsure about the exact sequence, but I managed to pass the exam.
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Herminia

10 months ago
Just passed the Docker Certified Associate exam! Pass4Success's practice questions were spot-on. Thanks for the quick prep!
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Corazon

10 months ago
Passing the Docker Certified Associate Exam was a great achievement for me, and I owe a big part of my success to the practice questions from Pass4Success. One question that I remember from the exam was related to running containerized applications from pre-existing images stored in a centralized registry. It required me to demonstrate my understanding of how to efficiently manage and deploy containers in a distributed environment, which was a key concept covered in my preparation.
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Francoise

11 months ago
Aced the Docker Certified Associate exam! Pay attention to Docker Swarm questions, particularly service scaling and updates. Know how to troubleshoot common Swarm issues. Pass4Success practice tests were invaluable – they really nailed the exam content and format.
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Thea

11 months ago
My experience taking the Docker Certified Associate Exam was a success, thanks to the helpful practice questions provided by Pass4Success. I encountered a question on the exam that tested my knowledge of deploying images across a cluster. Although I was unsure of the answer at first, I was able to apply my understanding of the topic to make an informed choice and ultimately pass the exam.
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Fannie

11 months ago
Docker security was a major focus on the exam. Expect questions about image scanning and best practices for secure container deployment. Brush up on Docker Content Trust and role-based access control. Pass4Success materials were crucial for my success – highly recommended!
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Germaine

1 years ago
Just passed the Docker Certified Associate exam! Huge thanks to Pass4Success for their spot-on practice questions. Pay attention to Docker Swarm questions, especially on service scaling and rolling updates. Understanding the nuances of docker-compose.yml file structure is crucial. I found the exam challenging but manageable with proper preparation.
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Selene

1 years ago
I recently passed the Docker Certified Associate Exam using Pass4Success practice questions. The exam was challenging, but I was able to confidently answer questions related to running containerized applications from pre-existing images stored in a centralized registry. One question that stood out to me was about the best practices for deploying images across a cluster, which I had to carefully consider before selecting the correct answer.
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Kaitlyn

1 years ago
Just passed the Docker Certified Associate exam! Encountered tricky questions on Docker networking, especially overlay networks. Make sure to understand how containers communicate across multiple hosts. Big thanks to Pass4Success for their spot-on practice questions – saved me tons of prep time!
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Free Docker DCA Exam Actual Questions

Note: Premium Questions for DCA were last updated On Jun. 22, 2025 (see below)

Question #1

Is this a type of Linux kernel namespace that provides container isolation?

Solution.Process ID

Reveal Solution Hide Solution
Correct Answer: A

Process ID is a type of Linux kernel namespace that provides container isolation.Linux namespaces are a feature of the Linux kernel that isolate and virtualize system resources of a collection of processes1.Process ID namespace isolates the process ID number space, meaning that processes in different PID namespaces can have the same PID2.This allows each container to have its own init process with PID 1, which is the ancestor of all other processes in the container3.Process ID namespace also affects other identifiers, such as thread IDs, parent process IDs, and session IDs4.Reference: Namespaces in operation), pid_namespaces),What is a PID namespace?, Linux Namespaces: PID)


Question #2

Is this an advantage of multi-stage builds?

Solution: simultaneously creates and tags multiple images

Reveal Solution Hide Solution
Correct Answer: B

Question #4

Is this an advantage of multi-stage builds?

Solution: simultaneously creates and tags multiple images

Reveal Solution Hide Solution
Correct Answer: B


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