DCA Dumps Help You Study Objectives

Category:

Comments:

0 Comments

Post Date:

June 2, 2025

By practicing with DCA exam-like questions, you can identify areas where you may need to focus your studies. Docker DCA dumps can help you create a more targeted study plan and avoid wasting time studying topics you already know well. Taking DCA dumps can help you get used to the format and structure of the real exam. DCA dumps can help you feel more comfortable and confident on exam day, which can improve your chances of success. Practice Docker DCA exam free dumps below.

Page 1 of 6

1. Seven managers are in a swarm cluster.

Is this how should they be distributed across three datacenters or availability zones? Solution: 4-2-1

Yes

2. Can this set of commands identify the published port(s) for a container? Solution: ‘docker container inspect", docker port'

Yes

3. Will this configuration achieve fault tolerance for managers in a swarm? Solution: only two managers, one active and one passive.

Yes

4. An application image runs in multiple environments, with each environment using different certificates and ports.

Is this a way to provision configuration to containers at runtime? Solution: Create a Dockerfile for each environment, specifying ports and Docker secrets for certificates.

Yes

5. One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times.

Is this the action taken by the orchestrator to fix the unhealthy container? Solution: The unhealthy container is restarted.

Yes

6. Will this action upgrade Docker Engine CE to Docker Engine EE? Solution: Disable the Docker service via ‘chkconfig' or 'systemctl'.

Yes

7. Will this action upgrade Docker Engine CE to Docker Engine EE? Solution: Manually download the 'docker-ee' package

Yes

8. You are running only Kubernetes workloads on a worker node that requires maintenance, such as installing patches or an OS upgrade.

Which command must be run on the node to gracefully terminate all pods on the node, while marking the node as unschedulable?

`docker swarm leave'

`docker node update -availability drain

`kubectl drain '

`kubectl cordon

9. Is this a function of UCP? Solution: image role-based access control

Yes

10. Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used? Solution: net

A. Yes

B. No

Page 2 of 6

11. An application image runs in multiple environments, with each environment using different certificates and ports.

Is this a way to provision configuration to containers at runtime? Solution: Create images that contain the specific configuration for every environment.

Yes

12. 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.

Yes

13. 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"

Yes

14. Does this describe the role of Control Groups (cgroups) when used with a Docker container? Solution: user authorization to the Docker API

Yes

15. 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?

Matching images are untagged during the next prune job.

Matching images are deleted during the next prune job.

Matching images are untagged once they are older than the pruning threshold set in the repository's Settings tab.

Matching images are untagged during the next prune job, and subsequently deleted once they are older than the pruning threshold set in the repository's Settings tab.

16. Will this configuration achieve fault tolerance for managers in a swarm? Solution: at least seven nodes in total

Yes

17. Will This command list all nodes in a swarm cluster from the command line? Solution: ‘docker swarm nodes'

Yes

18. The Kubernetes yaml shown below describes a networkPolicy.

Will the networkPolicy BLOCK this trafftc? Solution: a request issued from a pod bearing the tier: backend label, to a podbearing the tier: frontend label

Yes

19. The Kubernetes yaml shown below describes a networkPolicy.

Will the networkPolicy BLOCK this traffic? Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label

Yes

20. Is this an advantage of multi-stage builds? Solution: simultaneously creates and tags multiple images

Yes

Page 3 of 6

21. The Kubernetes yaml shown below describes a clusterIP service.

Is this a correct statement about how this service routes requests? Solution: Traffic sent to the IP of any pod with the label app: nginx on port 8080 will be forwarded to port 80 in that pod.

Yes

22. Is this the purpose of Docker Content Trust? Solution: Enable mutual TLS between the Docker client and server.

Yes

23. You want to create a container that is reachable from its host's network. Does this action accomplish this? Solution: Use either EXPOSE or --publish to access the containers on the bridge network

Yes

24. Is this the purpose of Docker Content Trust? Solution: Indicate an image on Docker Hub is an official image.

Yes

25. Will this command display a list of volumes for a specific container? Solution: docker volume inspect nginx'

Yes

26. Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.

Is this a way to accomplish this? Solution: Create one pod and add all the resources needed for each application

Yes

27. 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'

Yes

28. Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.

Is this a way to accomplish this? Solution: Add all the resources to the default namespace.

Yes

29. 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 -constraint networking.protocol.udp=true dns-cache"

Yes

30. Will a DTR security scan detect this? Solution: private keys copied to the image

Yes

Page 4 of 6

31. A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.

Can this be used to schedule containers to meet the security policy requirements? Solution: resource reservation

Yes

32. A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster. Can this be used to schedule containers to meet the security policy requirements? Solution: label constraints

Yes

33. You add a new user to the engineering organization in DTR.

Will this action grant them read/write access to the engineering/api repository? Solution: Add them to a team in the engineering organization that has read/write access to the engineering/api repository.

Yes

34. Does this describe the role of Control Groups (cgroups) when used with a Docker container? Solution: accounting and limiting of resources

Yes

35. 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.

Yes

36. The Kubernetes yaml shown below describes a clusterIP service.

Is this a correct statement about how this service routes requests? Solution: Traffic sent to the IP of this service on port 8080 will be routed to port 80 in a random pod with the label aPP: nginx.

Yes

37. Your organization has a centralized logging solution, such as Splunk.

Will this configure a Docker container to export container logs to the logging solution? Solution: docker system events --filter splunk

Yes

38. Will this command list all nodes in a swarm cluster from the command line? Solution: 'docker swarm nodes'

Yes

39. Will this command mount the host's '/data1directory to the ubuntu container in read-only mode? Solution: ‘docker run -v /data:/mydata -mode readonly ubuntu'

Yes

40. A users attempts to set the system time from inside a Docker container are unsuccessful.

Could this be blocking this operation? Solution: inter-process communication

Yes

Page 5 of 6

41. Will this command display a list of volumes for a specific container? Solution: ‘docker container logs nginx Cvolumes’

Yes

42. You want to create a container that is reachable from its host's network.

Does this action accomplish this? Solution: Use network connect to access the container on the bridge network.

Yes

43. You created a new service named 'http* and discover it is not registering as healthy.

Will this command enable you to view the list of historical tasks for this service? Solution: ‘docker inspect http"

Yes

44. Will this command list all nodes in a swarm cluster from the command line? Solution: ‘docker inspect nodes

Yes

45. In the context of a swarm mode cluster, does this describe a node? Solution: an instance of the Docker engine participating in the swarm

Yes

46. Will this command mount the host's '/data' directory to the ubuntu container in read-only mode? Solution: 'docker run --volume /data:/mydata:ro ubuntu'

Yes

47. Is this a supported user authentication method for Universal Control Plane? Solution: x.500

Yes

48. During development of an application meant to be orchestrated by Kubernetes, you want to mount the /data directory on your laptop into a container.

Will this strategy successfully accomplish this? Solution: Add a volume to the pod that sets hostPath.path: /data, and then mount this volume into the pod's containers as desired.

Yes

49. Is this an advantage of multi-stage builds? Solution: better caching when building Docker images

Yes

50. Will this command display a list of volumes for a specific container? Solution: docker volume logs nginx --containers'

Yes

Page 6 of 6

51. Will a DTR security scan detect this? Solution: image configuration poor practices, such as exposed ports or inclusion of compilers in production images

Yes

52. An application image runs in multiple environments, with each environment using different certificates and ports.

Is this a way to provision configuration to containers at runtime? Solution: Provision a Docker config object for each environment.

Yes

53. Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used? Solution: pid

Yes

54. You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object.

Does this command display it?

Solution:kubectl get deployment api

Yes

55. Will a DTR security scan detect this? Solution: licenses for known third party binary components

Yes

56. Is this a type of Linux kernel namespace that provides container isolation? Solution: Network

Yes

57. Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate? Solution: Set and export the IGNORE_TLS environment variable on the command line.

Yes

58. Will this command ensure that overlay traffic between service tasks is encrypted?

Solution: docker service create --network --secure

Yes

TAGS:

DCA, DCA exam dumps

Notify of

Label

Name*

Email*

Website

Label

Name*

Email*

Website

0 Comments

Oldest

Newest Most Voted

Inline Feedbacks

View all comments

Posts

Get DCA Dumps Full Version

Q&As: 191
Versions: PDF and Software Download Now

About Dumpsinfo

Dumpsinfo is a good platform providing the latest exam information and dumps questions for all IT certification exams. You can study all the latest exam dumps questions online.

[email protected]

Mon - Sat 9:00am - 6:00pm

DCA Dumps Help You Study Objectives

Related

Posts

About Us

EMAIL

Services

Opening Hours