Which command is used to create a Docker container from an image?

The command used to create a Docker container from an image is "docker run." This command not only creates a container from the specified image but also starts it immediately. When you issue "docker run," you are effectively combining the processes of creating a container and launching it, ensuring it operates right away.

In contrast, "docker create" is another command that does create a container from an image; however, it does not start the container automatically. This distinction is important because if you just need to create a container without running it, "docker create" would be the correct choice. Yet, in typical use cases where you want to create and execute the container in one step, "docker run" is the preferred and more commonly used command.

The "docker build" command is used primarily to build an image from a Dockerfile and context, not to create a container. The "docker start" command serves to restart an existing container, which is already created, rather than creating a new one. Thus, "docker run" stands out as the command that meets the requirement of both creating and starting a container from an image.