Why would you use `docker container prune`?

Using docker container prune is effective for removing all stopped containers and reclaiming resources. When you run this command, Docker looks through all containers on your system to find those that are no longer running—these are the stopped containers—and deletes them. This action helps manage disk space by freeing up resources that are no longer in use, which is especially valuable in environments where containers are created and destroyed frequently.

Reclaiming resources is crucial for performance, as it can prevent the accumulation of inactive containers that consume system resources, such as disk space. Regularly pruning stopped containers can help keep a Docker environment clean and efficient, making it easier to manage running services.

The other options do not accurately reflect the purpose of the command. For instance, docker container prune does not help recover deleted containers, manage the number of active containers, or restart all containers. Its specific function is to clean up by removing containers that are in a stopped state.