Docker DCA Docker Certified Associate (DCA) Exam Online Training
Docker DCA Online Training
The questions for DCA were last updated at May 11,2025.
- Exam Code: DCA
- Exam Name: Docker Certified Associate (DCA) Exam
- Certification Provider: Docker
- Latest update: May 11,2025
Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 5-1-1
- A . Yes
- B . No
Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 3-2-2
- A . Yes
- B . No
Does this command create a swarm service that only listens on port 53 using the UDP protocol?
Solution: ‘docker service create –name dns-cache -p 53:53/udp dns-cache’
- A . Yes
- B . No
Does this command create a swarm service that only listens on port 53 using the UDP protocol?
Solution: ‘docker service create -name dns-cache -p 53:53 -service udp dns-cache’
- A . Yes
- B . No
You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
Solution: Turn the configuration file into a configMap object and mount it directly into the appropriate pod and container using the .spec.containers.configMounts key.
- A . Yes
- B . No
You want to provide a configuration file to a container at runtime. Does this set of Kubernetes tools and steps accomplish this?
Solution: Mount the configuration file directly into the appropriate pod and container using the .spec.containers.configMounts key.
- A . Yes
- B . No
You want to provide a configuration file to a container at runtime.
Does this set of Kubernetes tools and steps accomplish this?
Solution: Turn the configuration file into a configMap object, use it to populate a volume associated with the pod, and mount that file from the volume to the appropriate container and path.
- A . Yes
- B . No
In Docker Trusted Registry, is this how a user can prevent an image, such as ‘nginx:latest’, from being overwritten by another user with push access to the repository?
Solution: Use the DTR web Ul to make all tags in the repository immutable.
- A . Yes
- B . No
Will this command mount the host’s ‘/data’ directory to the ubuntu container in read-only mode?
Solution: ‘docker run –add-volume /data /mydata -read-only ubuntu’
- A . Yes
- B . No
Will this command mount the host’s ‘/data’ directory to the ubuntu container in read-only mode?
Solution: ‘docker run -v /data:/mydata –mode readonly ubuntu’
- A . Yes
- B . No
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