Free Docker DCA Practice Test & Real Exam Questions
A persistentVolumeClaim (PVC) is created with the specification storageClass: "", and size requirements that cannot be satisfied by any existing persistentVolume.
Is this an action Kubernetes takes in this situation?
Solution: The PVC remains unbound until a persistentVolume that matches all requirements of the PVC becomes available.
Is this an action Kubernetes takes in this situation?
Solution: The PVC remains unbound until a persistentVolume that matches all requirements of the PVC becomes available.
Correct Answer: B
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You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution: Use --link to access the container on the bridge network.
Solution: Use --link to access the container on the bridge network.
Correct Answer: A
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Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution: Delete the image and delete the image repository from Docker Trusted Registry
Solution: Delete the image and delete the image repository from Docker Trusted Registry
Correct Answer: A
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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 logs deployment api
Solution: kubectl logs deployment api
Correct Answer: A
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When an application being managed by UCP fails, you would like a summary of all requests made to the UCP API in the hours leading up to the failure.
What must be configured correctly beforehand for this to be possible?
What must be configured correctly beforehand for this to be possible?
Correct Answer: A
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Will this command display a list of volumes for a specific container?
Solution: docker volume logs nginx --containers'
Solution: docker volume logs nginx --containers'
Correct Answer: A
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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'
Solution: 'kubectl get pods --all-namespaces -label env=development'
Correct Answer: A
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You want to mount external storage to a particular filesystem path in a container in a Kubernetes pod.
What is the correct set of objects to use for this?
What is the correct set of objects to use for this?
Correct Answer: C
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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 events deployment api
Solution: kubectl events deployment api
Correct Answer: A
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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 logs <container-id>
Will this configure a Docker container to export container logs to the logging solution?
Solution: docker logs <container-id>
Correct Answer: A
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Will this command ensure that overlay traffic between service tasks is encrypted?
Solution.docker network create -d overlay --secure <network-name>
Solution.docker network create -d overlay --secure <network-name>
Correct Answer: A
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Is this statement correct?
Solution.A Dockerfile stores persistent data between deployments of a container
Solution.A Dockerfile stores persistent data between deployments of a container
Correct Answer: A
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The following Docker Compose file is deployed as a stack:
Is this statement correct about this health check definition?
Solution: Health checks test for app health ten seconds apart. If the test fails, the container will be restarted three times before it gets rescheduled.
Is this statement correct about this health check definition?
Solution: Health checks test for app health ten seconds apart. If the test fails, the container will be restarted three times before it gets rescheduled.
Correct Answer: A
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Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: user
Solution: user
Correct Answer: B
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