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

Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution: Delete the image and run garbage collection on the Docker Trusted Registry.

You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service?
Solution: 'docker service inspect http'

Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: accounting and limiting of resources

Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: role-based access control to clustered resources