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

Which of the following is NOT backed up when performing a Docker Trusted backup operation?

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

A server is running low on disk space. What command can be used to check the disk usage of images,
containers, and volumes for Docker engine?

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: label contraints