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

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

• A. docker create
• B. docker build
• C. docker run
• D. docker start

Answer: (C)

The command used to create a Docker container from an image is indeed "docker run." This command not only creates a container but also starts it immediately, which makes it a convenient way to launch a new container based on a specified image. When you use "docker run," the Docker engine pulls the image if it is not available locally, creates a new container from that image, and then starts the container. The other commands serve different purposes. "docker create" is used to create a container without starting it, which is useful if you want to set up a container but don't need it to run immediately. "docker build" is utilized for building images from a Dockerfile, while "docker start" is used to start an already stopped container. Hence, "docker run" stands out as the most appropriate choice for creating and starting a Docker container from an image.

The command used to create a Docker container from an image is indeed "docker run." This command not only creates a container but also starts it immediately, which makes it a convenient way to launch a new container based on a specified image. When you use "docker run," the Docker engine pulls the image if it is not available locally, creates a new container from that image, and then starts the container.

The other commands serve different purposes. "docker create" is used to create a container without starting it, which is useful if you want to set up a container but don't need it to run immediately. "docker build" is utilized for building images from a Dockerfile, while "docker start" is used to start an already stopped container. Hence, "docker run" stands out as the most appropriate choice for creating and starting a Docker container from an image.