DCA Practice Test

Which of the following namespaces is disabled by default and must be enabled at Docker engine runtime in order to be used?

A.

user

B.

pid

C.

net

D.

mnt

How do you configure Docker engine to use a registry that is not configured with TLS certificates from a
trusted CA?

A.

Set IGNORE_TLS in the 'daemon.json' configuration file.

B.

Set and export the IGNORE_TLS environment variable on the command line

C.

Set INSECURE_REGISTRY in the '/etc/docker/default' configuration file

D.

Pass the '--insecure.-registry' flag to the daemon at run time

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

A.

Repository URL obtained from Docker Store

B.

License key obtained from Docker Store

C.

Repository URL obtained from Docker Hub

D.

License key obtained from Docker Hub

A host machine has four CPUs available and two running containers. The sysadmin would like to assign two CPUs to each container. Which of the following commands achieves this?

A.

Set the '--cpuset-cpu's flag to '1.3' on one container and '2.4' on the other container.

B.

Set the '--cpuset-cpus' flag to '.5' on both containers

C.

Set the '--cpuset-cpus' flag of the 'dockerd' process to the value 'even-spread'

D.

Set the '--cpu-quota' flag to '1.3' on one container and '2,4' on the other container.

Which command interactively monitors all container activity in the Docker engine?

A.

docker system logs

B.

docker system events

C.

docker container events

D.

docker container logs