Trusted Worldwide Questions & Answers
Docker DCA Dumps - Pass Docker Certified Associate Exam in 2026
The Docker DCA - Docker Certified Associate Exam is designed for professionals who want to validate practical Docker skills across core container concepts. It belongs to the Docker Certified Associate certification path and is aimed at candidates who work with images, networking, security, orchestration, storage, and installation tasks. This certification matters because it helps demonstrate job-ready knowledge for real-world container environments. If you are preparing for the Docker Certified Associate Exam, focused practice can help you build confidence and improve exam readiness.
| # | Exam Topics | Sub-Topics | Approximate Weightage (%) |
|---|---|---|---|
| 1 | Orchestration | Swarm basics, service management, stack deployment, scaling and updates | 24% |
| 2 | Image Creation, Management, and Registry | Dockerfile usage, image tagging, build workflows, registry push and pull operations | 22% |
| 3 | Installation and Configuration | Docker engine setup, daemon configuration, client commands, runtime settings | 14% |
| 4 | Networking | Bridge and overlay networks, container connectivity, port publishing, DNS basics | 16% |
| 5 | Security | Secrets handling, image trust concepts, access control, secure container practices | 12% |
| 6 | Storage and Volumes | Volumes, bind mounts, persistent data, storage driver basics | 12% |
The exam tests how well candidates can apply Docker knowledge in practical scenarios rather than just memorize terms. You need to understand core concepts, choose the right commands, and manage containers, images, networks, and storage with confidence. It also measures your ability to work through common Docker administration tasks accurately and efficiently.
How QA4Exam.com Helps You Pass
QA4Exam.com provides Exam PDF material with actual questions and answers, along with an Online Practice Test that helps you prepare in a realistic way for the Docker DCA exam. The practice test gives you a real exam simulation so you can get familiar with the question style and improve your time management. The questions are updated and the answers are verified, which helps you study with more confidence. Using both formats together can strengthen your understanding and support your goal of passing the Docker Certified Associate exam on your first attempt.
Frequently Asked Questions
This exam is for candidates who want to validate practical Docker skills and earn the Docker Certified Associate certification. It is suitable for professionals working with containers, images, networking, storage, security, and orchestration.
The exam can be challenging because it tests practical understanding across multiple Docker domains. Candidates who study the topics carefully and practice with exam-style questions are better prepared for success.
Braindumps alone are not the best approach. You should combine dumps with real practice and topic review so you understand the concepts and can answer scenario-based questions with confidence.
Yes, hands-on experience is very helpful because the exam focuses on practical Docker tasks. Working with images, containers, networks, volumes, and orchestration will make the questions easier to understand.
QA4Exam.com dumps and the Online Practice Test are strong preparation tools, especially when used together. For best results, combine them with topic review and hands-on practice so you are ready for different question formats.
The practice tests simulate the exam environment, use updated questions, and include verified answers. This helps you measure your readiness, improve time management, and reduce surprises on exam day.
QA4Exam.com offers an Exam PDF with actual questions and answers and an Online Practice Test for interactive preparation. Both are designed to support focused study for the Docker DCA exam.
The questions for DCA were last updated on Sep 3, 2026.
- Viewing page 1 out of 38 pages.
- Viewing questions 1-5 out of 191 questions
Will this configuration achieve fault tolerance for managers in a swarm?
Solution: one manager node for two worker nodes
Docker Swarm requires more than one manager node to achieve fault tolerance12.A single manager node is not fault tolerant because if it goes down, the entire cluster goes down3.For a swarm to be fault-tolerant, it needs to have an odd number of manager nodes2.For example, a three-manager swarm tolerates a maximum loss of one manager2.Therefore, a configuration with one manager node for two worker nodes will not achieve fault tolerance for managers in a swarm12.
Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution. Set INSECURE_REGISTRY in the' /etc/docker/default' configuration file.
= Setting INSECURE_REGISTRY in the /etc/docker/default configuration file is one way to configure the Docker engine to use a registry without a trusted TLS certificate.This option tells the Docker daemon to accept insecure connections to the specified registry, bypassing the certificate verification1.However, this method is not recommended, as it exposes the registry and the Docker engine to potential security risks2.A better way to use a registry without a trusted TLS certificate is to add the registry's CA certificate to the Docker daemon's trust store, as described in the Docker documentation3or other online guides4.Reference:
1: How to build docker registry without SSL
2: Verify repository client with certificates | Docker Docs
3: ''docker pull'' certificate signed by unknown authority
4: Login to docker registry with client certificate under windows
You set up an automatic pruning policy on a DTR repository to prune all images using Apache licenses.
What effect does this have on images in this repository?
Will this configuration achieve fault tolerance for managers in a swarm?
Solution: only two managers, one active and one passive.
= The configuration willnotachieve fault tolerance for managers in a swarm, because it does not have enough managers to form a quorum. A quorum is the minimum number of managers that must be available to agree on values and maintain the consistent state of the swarm. The quorum is calculated as (N/2)+1, where N is the number of managers in the swarm. For example, a swarm with 3 managers has a quorum of 2, and a swarm with 5 managers has a quorum of 3. Having only two managers, one active and one passive, means that the quorum is also 2. Therefore, if one manager fails or becomes unavailable, the swarm will lose the quorum and will not be able to process any requests or schedule any tasks. To achieve fault tolerance, a swarm should have an odd number of managers, at least 3, and no more than 7. This way, the swarm can tolerate the loss of up to (N-1)/2 managers and still maintain the quorum and the cluster state.Reference:
Administer and maintain a swarm of Docker Engines
Raft consensus in swarm mode
How nodes work
Will this command display a list of volumes for a specific container?
Solution. 'docker container logs nginx --volumes'
The commanddocker container logs nginx --volumeswillnotdisplay a list of volumes for a specific container.Thedocker container logscommand shows the logs of a container, which are usually the standard output and standard error of the main process running in thecontainer1.The--volumesflag is not a valid option for this command, and will result in an error message2.To display a list of volumes for a specific container, you can use thedocker inspectcommand with a filter option, such asdocker inspect -f '{{ .Mounts }}' nginx3.This will show the source, destination, mode, type, and propagation of each volumemounted in the container4.Reference:docker container logs,docker container logs nginx --volumes,docker inspect,docker inspect -f '{{ .Mounts }}' nginx
Unlock All Questions for Docker DCA Exam
Full Exam Access, Actual Exam Questions, Validated Answers, Anytime Anywhere, No Download Limits, No Practice Limits
Get All 191 Questions & Answers