Free Practice Docker DCA Exam Questions 2025

Stay ahead with 100% Free Docker Certified Associate DCA Dumps Practice Questions

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Total 185 Questions | Updated On: Apr 09, 2025

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Question 1

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?

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

B : Matching Images are untagged during the next prune job.

C : Matching images are deleted during the next prune Job.

D : 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.

Answer: A

Question 2

Is this an advantage of multi-stage builds? Solution. better logical separation of Dockerfile instructions for increased readability

A : Yes

B : Yes

Answer: A

Question 3

An application image runs in multiple environments, and each environment uses different certificates and ports, what is the best practice to deploy the containers?

A : Create a Dockerfile for each environment, specifying ports and ENV variables for certificates.

B : Create a Dockerfile for each environment, specifying ports and Docker secrets for certificates.

C : Create images that contain the specific configuration for every environment.

D : Create a config file for each environment.

Answer: D

Question 4

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

Answer: A

Question 5

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

Solution: docker network create -d overlay -o encrypted=true <network-name>

A : Yes

B : No

Answer: A

Page: 1 / 37

Total 185 Questions | Updated On: Apr 09, 2025

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