Free Access Docker.DCA.v2022-07-29.q64 Practice Test (Page 12)

Question 51

Which of the following is true about using the '-P' option when creating a new container?

A.Docker gives extended privileges to the container.

B.Docker binds each exposed container port with the same port on the host

C.Docker binds each exposed container port to a random port on all the host's interface

D.Docker binds each exposed container port to a random port on a specified host interface

Question 52

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.

A.Create a new docker secret with a new password. Trigger a rolling update of the "wordpress" service, by using "--secret-rm" & "--secret-add" to remove the old secret and add the updated secret.

B.Trigger an update to the service by using 'docker service update --secret=<new password>'

C.Create a new docker secret with the new password. Trigger a rolling secret update by using the 'docker secret update' command

D.Create a new docker secret with the new password. Remove the existing service using 'docker service rm'. Start a new service with the new secret using "--secret=<new password>"

Question 53

Two pods bear the same label, app: dev.
Will a label selector matching app: dev match both of these pods?

A.Yes, if both pods were pre-existing when the label selector was declared.

B.Yes, as long as all the containers in those pods are passing their livenessProbes and readinessProbes.

C.Yes, if the pods are in the same Kubernetes namespace as the object bearing the label selector

D.Yes, if the pods are in the same Kubernetes namespace as the object bearing the label selector and both pods were preexisting when the label selector was declared.

Question 54

What is the docker command to setup a swarm?

A.docker swarm init

B.docker swarm create

C.docker init swarm

D.docker create swarm

Question 55

Which of the following is required to install Docker EE from a package repository?

A.License key obtained from Docker Store

B.Repository URL obtained from Docker Store

C.License key obtained from Docker Hub

D.Repository URL obtained from Docker Hub

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Question 51

Question 52

Question 53

Question 54

Question 55

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