Which statement is true about the 'docker container start' command?

The statement that you can run the 'docker container start' command against a container multiple times is true because this command is specifically designed to start an existing container that has been stopped. Once a container is created and subsequently stopped, it can be started again as many times as needed without the requirement to delete and recreate it.

When you use 'docker container start' on a container that is already stopped, it transitions the container back to the running state. This allows for flexibility in managing containerized applications, as you can stop and start them based on your needs without the overhead of deleting them.

The other statements lack this understanding of how Docker manages container states. For example, there's no restriction that requires a user to delete a container before restarting it, nor does running 'docker rm' become necessary prior to starting a container again. Additionally, it is not required to create a new container with 'docker run' before starting an existing one. This highlights the efficiency and convenience of container management in Docker.