Free Docker DCA Exam Questions

Become Docker Certified with updated DCA exam questions and correct answers

Page: 1 / 50

Total 247 Questions | Updated On: Apr 29, 2026

Add To Cart

Question 1

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'

A : Yes

B : No

Answer: B

Question 2

What is the purpose of multi-stage builds?

A : Better logical separation of Dockerfile instructions for better readability

B : Optimizing images by copying artifacts selectively from previous stages

C : Better caching when building Docker images

D : Faster image builds by allowing parallel execution of Docker builds

Answer: B

Question 3

What behavior is expected when a service is created with the following command: 'docker service create -- publish 8000:80 nginx'

A : All nodes in the cluster will listen on port 8080 and forward to port 80 in the container.

B : Only a single node in the cluster will listen on port 8080 and forward to port 80 in the container.

C : All nodes in the cluster will listen on port 80 and forward to port 8080 in the container.

D : Only a single node in the cluster will listen on port 80 and forward to port 8080 in the container.

Answer: A

Question 4

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.

A : Yes

B : No

Answer: A

Question 5

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

A : Yes

B : No

Answer: B

Page: 1 / 50

Total 247 Questions | Updated On: Apr 29, 2026

Add To Cart