What command connects a container to a specified network?

The correct command to connect a container to a specified network is “docker network connect [network_name] [container_name].” This command allows you to attach an existing container to a network that has already been created, enabling the container to communicate with other containers on the same network.

Docker's networking model is designed for containers to communicate with each other, and the "connect" part of the command explicitly indicates that you are adding the container to a new network context. Specifying the network name and container name allows Docker to understand exactly which network to connect to and which container should be included in that network.

In essence, this command is an essential part of managing container networking within Docker, as it provides the flexibility to modify network connections for containers after they have already been created and are running.