[Q22-Q40] DCA PDF Download Feb-2023 Docker Test To Gain Brilliante Result!

Q22. 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

Q23. You want to create a container that is reachable from its host’s network. Does this action accomplish this?
Solution: Use –link to access the container on the bridge network.

Q24. 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?

Q25. What is the difference between the ADD and COPY dockerfile instructions? (choosen 2)

Q26. Does this command display all the pods in the cluster that are labeled as ‘env: development’?
Solution: ‘kubectl get pods -I env=development’

Q27. 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: node taints

Q28. Which statement is true about DTR garbage collection?

Q29. When seven managers are in a swarm cluster how would they be distributed across three datacenters or availability zones?

Q30. From a DevOps process standpoint, it is best practice to keep changes to an application in version control. Which of the following will allow changes to a docker Image to be stored in a version control system?

Q31. Will this command display a list of volumes for a specific container?
Solution: ‘docker container inspect nginx’

Q32. 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 namespace for each application and add all the resources to it.

Q33. You have deployed a service to swarm. Which command uses the Docker CLI to set the number of tasks of the services to 5? (choose 2)

Q34. How do you change the default logging driver for the docker daemon in Linux?

Q35. Is this a Linux kernel namespace that is disabled by default and must be enabled at Docker engine runtime to be used?
Solution: net

Q36. Which of the following is true about overlay networks?

Q37. Which of the following commands will create a swarm service which only listens on port 53 using the UDP protocol?

Q38. What is the purpose of multi-stage builds?

Q39. Is this a function of UCP?
Solution: enforces the deployment of signed images to the cluster

Q40. Which of the following commands wifi automatically create a volume when a container is started?