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Docker DCA Practice Test - Questions Answers, Page 9

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Question 81

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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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Question 82

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Is this an advantage of multi-stage builds?

Solution: optimizes Images by copying artifacts selectively from previous stages

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Question 83

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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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Question 84

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Will this command list all nodes in a swarm cluster from the command line?

Solution: 'docker node Is'

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Question 85

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Will this command list all nodes in a swarm cluster from the command line?

Solution: 'docker Is -a'

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Question 86

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Is this a type of Linux kernel namespace that provides container isolation?

Solution: Storage

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Question 87

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Is this a type of Linux kernel namespace that provides container isolation?

Solution: Network

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Question 88

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Is this a type of Linux kernel namespace that provides container isolation?

Solution: Authentication

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Question 89

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Is this statement correct?

Solution: A Dockerfile provides instructions for building a Docker image

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Question 90

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A users attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation?

Solution: inter-process communication

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Total 183 questions
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Related questions

Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate? Solution. Set INSECURE_REGISTRY in the' /etc/docker/default' configuration file.
Will this command display a list of volumes for a specific container? Solution. 'docker container logs nginx --volumes'
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 this command list all nodes in a swarm cluster from the command line? Solution. 'docker inspect nodes
Is this a supported user authentication method for Universal Control Plane? Solution. x.500
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 controller managing the pod is autoscaled back to delete the unhealthy pod and alleviate load.
A user's attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation? Solution. SELinux
The Kubernetes yaml shown below describes a clusterIP service. Is this a correct statement about how this service routes requests? Solution: Traffic sent to the IP of this service on port 8080 will be routed to port 80 in a random pod with the label aPP: nginx.
A Kubernetes node is allocated a /26 CIDR block (64 unique IPs) for its address space. If every pod on this node has exactly two containers in it, how many pods can this address space support on this node?
Is this a function of UCP? Solution: enforces the deployment of signed images to the cluster