2022 Latest DCA DUMPS Q&As with Explanations Verified & Correct Answers [Q73-Q93]

QUESTION 73
Is this a type of Linux kernel namespace that provides container isolation?
Solution: Authentication

QUESTION 74
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution: Delete ‘/var/lib/docker’ directory.

QUESTION 75
What service mode is used to deploy a single task of a service to each node?

QUESTION 76
What is the recommended way to configure the daemon flags and environment variables for your Docker daemon in a platform independent way?

QUESTION 77
Which of the following is supported by control groups?

QUESTION 78
Wha is the purpose of Docker Content Trust?

QUESTION 79
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution: Delete the image and delete the image repository from Docker Trusted Registry

QUESTION 80
Some Docker images take time to build through a Continuous Integration environment. You want to speed up builds and take advantage of build caching.
Where should the most frequently changed part of a Docker image be placed in a Dockerfile?

QUESTION 81
Will this configuration achieve fault tolerance for managers in a swarm?
Solution: only two managers, one active and one passive.

QUESTION 82
Will this Linux kernel facility limit a Docker container’s access to host resources, such as CPU or memory?
Solution: cgroups

QUESTION 83
Will this configuration achieve fault tolerance for managers in a swarm?
Solution: an odd number of manager nodes, totaling more than two

QUESTION 84
Your organization has a centralized logging solution, such as Splunk.
Will this configure a Docker container to export container logs to the logging solution?
Solution: docker logs <container-id>

QUESTION 85
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 service create myorg/myimage:1.0

QUESTION 86
A service ‘wordpress’ is running using a password string to connect to a non-Dockerized database service. The password string is passed into the ‘wordpress’ service as a Docker secret. Per security policy, the password on the database was changed. Identity the correct sequence of steps to rotate the secret from the old password to the new password.

QUESTION 87
Which of the following is true about overlay networks?

QUESTION 88
Which one of the following commands will show a list of volumes for a specific container?

QUESTION 89
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.

QUESTION 90
Is this a function of UCP?
Solution: image role-based access control

QUESTION 91
Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.
Is this a way to accomplish this?
Solution: Create one pod and add all the resources needed for each application

QUESTION 92
Is this an advantage of multi-stage builds?
Solution: better caching when building Docker images

QUESTION 93
You have just executed ‘docker swarm leave’ on a node. What command can be run on the same node to confirm it has left the cluster?