Will this command mount the host's '/data' directory to the ubuntu container in read-only mode?
Solution: 'docker run --volume /data:/mydata:ro ubuntu'

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?

In the context of a swarm mode cluster, does this describe a node?
Solution: a physical machine participating in the swarm

Will this command ensure that overlay traffic between service tasks is encrypted?
Solution: docker service create --network --encrypted

A user is having problems running Docker. Which of the following will start Docker in debug mode?