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  1. Home
  2. Docker Certification
  3. DCA Exam
  4. Docker.DCA.v2023-09-25.q118 Dumps
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Question 71

During development of an application meant to be orchestrated by Kubernetes, you want to mount the /data directory on your laptop into a container.
Will this strategy successfully accomplish this?
Solution: Add a volume to the pod that sets hostPath.path: /data, and then mount this volume into the pod's containers as desired.

Correct Answer: A
Explanation
Adding a volume to the pod that sets hostPath.path: /data, and then mounting this volume into the pod's containers as desired is a strategy that successfully accomplishes this. A hostPath volume mounts a file or directory from the host node's filesystem into a pod. It can be used to access files on the host from a container, such as configuration files, logs, binaries, etc. However, this type of volume is not portable across nodes and should be used with caution. References: https://kubernetes.io/docs/concepts/storage/volumes/#hostpath,
https://kubernetes.io/docs/tasks/configure-pod-container/configure-volume-storage/
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Question 72

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

Correct Answer: B
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Question 73

You configure a local Docker engine to enforce content trust by setting the environment variable
DOCKER_CONTENT_TRUST=1.
If myorg/myimage: 1.0 is unsigned, does Docker block this command?
Solution: docker image import <tarball> myorg/myimage:1.0

Correct Answer: A
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Question 74

Is this a supported user authentication method for Universal Control Plane?
Solution: PAM

Correct Answer: A
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Question 75

One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?
Solution: The unhealthy container is restarted.

Correct Answer: A
Explanation
The unhealthy container is restarted by the orchestrator to fix the unhealthy container, because this is the default behavior of Kubernetes when a container fails its livenessProbe. According to the official documentation, Kubernetes will kill and restart the container if it does not become healthy after a certain number of failures.
References:
https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/#define-a-li
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