Which Docker command allows you to view running containers?

Which Docker command allows you to view running containers?

• A. docker show
• B. docker status
• C. docker ps
• D. docker list

Answer: (C)

The command that allows you to view running containers in Docker is `docker ps`. This command provides a snapshot of the currently active containers, displaying essential information such as container IDs, image names, command used to start the container, the creation time, status, ports being used, and names assigned to the containers. Using `docker ps` is effective for monitoring and managing your Docker environment, as it helps you quickly check which containers are running at any given time. This command is fundamental to container orchestration and troubleshooting in a Dockerized environment. In contrast, the other commands listed do not serve this specific purpose within Docker's command suite. For instance, `docker show`, `docker status`, and `docker list` do not exist as valid commands in Docker for listing running containers, which is why they are not applicable here.

The command that allows you to view running containers in Docker is docker ps. This command provides a snapshot of the currently active containers, displaying essential information such as container IDs, image names, command used to start the container, the creation time, status, ports being used, and names assigned to the containers.

Using docker ps is effective for monitoring and managing your Docker environment, as it helps you quickly check which containers are running at any given time. This command is fundamental to container orchestration and troubleshooting in a Dockerized environment.

In contrast, the other commands listed do not serve this specific purpose within Docker's command suite. For instance, docker show, docker status, and docker list do not exist as valid commands in Docker for listing running containers, which is why they are not applicable here.