Docker Certified Associate (DCA) - DCA Exam Questions
QUESTION NO: 1
Will this command list all nodes in a swarm cluster from the command line?
Solution: 'docker node Is'
Will this command list all nodes in a swarm cluster from the command line?
Solution: 'docker node Is'
Correct Answer: A
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QUESTION NO: 2
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.
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.
Correct Answer: A
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 3
Is this statement correct?
Solution: A Dockerfile stores the Docker daemon's configuration options.
Is this statement correct?
Solution: A Dockerfile stores the Docker daemon's configuration options.
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 4
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.
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.
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 5
Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory?
Solution: seccomp
Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory?
Solution: seccomp
Correct Answer: A
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 6
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: role-based access control to clustered resources
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: role-based access control to clustered resources
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 7
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"
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"
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 8
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 describe deployment api
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 describe deployment api
Correct Answer: A
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 9
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.
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.
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 10
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'
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'
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 11
Is this a function of UCP?
Solution: enforces the deployment of signed images to the cluster
Is this a function of UCP?
Solution: enforces the deployment of signed images to the cluster
Correct Answer: A
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 12
Is this the purpose of Docker Content Trust?
Solution: Enable mutual TLS between the Docker client and server.
Is this the purpose of Docker Content Trust?
Solution: Enable mutual TLS between the Docker client and server.
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 13
Will this command display a list of volumes for a specific container?
Solution: 'docker container inspect nginx'
Will this command display a list of volumes for a specific container?
Solution: 'docker container inspect nginx'
Correct Answer: A
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
QUESTION NO: 14
You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution:Use network attach to access the containers on the bridge network
You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution:Use network attach to access the containers on the bridge network
Correct Answer: B
Explanation: Only visible for Pass4Test members. You can sign-up / login (it's free).
