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Docker Certified Associate Exam

Certification Provider: Docker
Exam Name: Docker Certified Associate Exam
Number of questions in our database: 147
Exam Version: Feb. 12, 2024
Exam Official Topics:
  • Topic 1: Run Containerized Applications from Pre-Existing Images Stored in a Centralized Registry
  • Topic 2: Deploy Images Across the Cluster
  • Topic 3: Install Maintain and Operate the Docker Platform
  • Topic 4: Triage Issue Reports from Stakeholders and Resolve
  • Topic 5: Standup new Docker Environments and Perform General Maintenance and Configuration
  • Topic 6: Migrate Traditional Applications to Containers
  • Topic 7: Configure and Troubleshoot Docker Engine

Free Docker Docker Certified Associate Exam Exam Actual Questions

The questions for Docker Certified Associate Exam were last updated On Feb. 12, 2024

Question #3

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. Set containers. Mounts. hostBinding: /data in the container's specification.

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Correct Answer: B

This strategy does not successfully mount the /data directory on your laptop into a container. Setting containers.mounts.hostBinding to /data in the container's specification is not a valid way to mount a host directory into a container in Kubernetes. Kubernetes does not support mounting arbitrary host directories into containers, as this would break the portability and isolation of pods across different nodes. To mount a host directory into a container in Kubernetes, you need to use one of the following methods:

Use hostPath volume, which allows you to mount a file or directory from the host node's filesystem into your pod.

Use local volume, which allows you to mount local storage devices such as disks or partitions into your pod.

Use persistentVolume and persistentVolumeClaim with hostPath or local volume as storage class, which allows you to abstract the details of how storage is provided from how it is consumed. Reference: https://kubernetes.io/docs/concepts/storage/volumes/#hostpath, https://kubernetes.io/docs/concepts/storage/volumes/#local, https://kubernetes.io/docs/concepts/storage/persistent-volumes/


Question #4

During development of an application meant to be orchestrated by Kubemetes, you want to mount the /data directory on your laptop into a container.

Will this strategy successfully accomplish this?

Solution. Create a Persistent VolumeClaim requesting storageClass:'''' (which defaults to local storage) and hostPath and use this to populate a volume in a pod.

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