Expert Answers to Docker Exam DCA Questions

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Docker Certified Associate Docker Certified Associate (DCA) Exam

Docker Certified Associate (DCA) Exam

Last Update Feb 26, 2026
Total Questions : 191

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Questions 2

Seven managers are in a swarm cluster.

Is this how should they be distributed across three datacenters or availability zones?

Solution: 3-3-1

Options:

Yes

Discussion 0

Questions 3

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

Solution:docker network create -d overlay --secure

Options:

Yes

Discussion 0

Questions 4

Does this command display all the pods in the cluster that are labeled as 'env: development'?

Solution: 'kubectl get pods --all-namespaces -label env=development'

Options:

Yes

Discussion 0

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Questions 5

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: Tag the image with 'nginx:immutable'.

Options:

Yes

Discussion 0

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