Free Docker Certified Associate DCA Exam Practice Test

Is this the purpose of Docker Content Trust?Solution: Enable mutual TLS between the Docker client and server.

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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: Kubernetes automatically triggers a user-defined script to attempt to fix the unhealthy container.

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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"

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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 -service udp dns-cache'

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In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest’, from being overwritten by another user with push access to the repository?Solution: Use the DTR web Ul to make all tags in the repository immutable.

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Can this set of commands identify the published port(s) for a container?Solution. ‘docker container inspect", docker port'

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Will This command list all nodes in a swarm cluster from the command line?Solution. ‘docker swarm nodes'

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A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster. Can this be used to schedule containers to meet the security policy requirements?Solution. label constraints

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Seven managers are in a swarm cluster.Is this how should they be distributed across three datacenters or availability zones?Solution: 3-3-1

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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: Create a PersistentVolume with storageciass: "" and hostPath: /data, and a persistentVolumeClaim requesting this PV. Then use that PVC to populate a volume in a pod

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