Docker DCA Actual Free Exam Questions & Community Discussion
Will this command display a list of volumes for a specific container?
Solution: 'docker container inspect nginx'
Solution: 'docker container inspect nginx'
Correct Answer: A
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In the context of a swarm mode cluster, does this describe a node?
Solution: an instance of the Docker engine participating in the swarm
Solution: an instance of the Docker engine participating in the swarm
Correct Answer: A
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Will this command mount the host's '/data1directory to the ubuntu container in read-only mode?
Solution. 'docker run -v /data:/mydata -mode readonly ubuntu'
Solution. 'docker run -v /data:/mydata -mode readonly ubuntu'
Correct Answer: B
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Can this set of commands identify the published port(s) for a container?
Solution: docker container inspect', 'docker port'
Solution: docker container inspect', 'docker port'
Correct Answer: A
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Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution: Set IGNORE_TLS in the 'daemon.json' configuration file.
Solution: Set IGNORE_TLS in the 'daemon.json' configuration file.
Correct Answer: B
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Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution: List insecure registries in the 'daemon.json configuration file under the \insecure-registries' key.
Solution: List insecure registries in the 'daemon.json configuration file under the \insecure-registries' key.
Correct Answer: A
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Is this an advantage of multi-stage builds?
Solution: optimizes Images by copying artifacts selectively from previous stages
Solution: optimizes Images by copying artifacts selectively from previous stages
Correct Answer: A
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Will this configuration achieve fault tolerance for managers in a swarm?
Solution: at least seven nodes in total
Solution: at least seven nodes in total
Correct Answer: A
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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: Tag the image with 'nginx:immutable'.
Solution: Tag the image with 'nginx:immutable'.
Correct Answer: B
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Are these conditions sufficient for Kubernetes to dynamically provision a persistentVolume, assuming there are no limitations on the amount and type of available external storage?
Solution: A default storageClass is specified, and subsequently a persistentVolumeClaim is created.
Solution: A default storageClass is specified, and subsequently a persistentVolumeClaim is created.
Correct Answer: A
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The Kubernetes yaml shown below describes a networkPolicy.
Will the networkPolicy BLOCK this traffic?
Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label
Will the networkPolicy BLOCK this traffic?
Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label
Correct Answer: A
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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.Create a Dockerfile for each environment, specifying ports and Docker secrets for certificates.
Solution.Create a Dockerfile for each environment, specifying ports and Docker secrets for certificates.
Correct Answer: B
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