Question

How do you display all Docker containers (running or stopped), but list ONLY the Container IDs and not the associated names?

A) docker ps -q

B) docker container ls -q

C) docker ps -a -q

D) docker container ls -a -q

Answer 1

The correct commands to display all Docker containers and list only the container IDs, excluding the associated names, are C) docker ps -a -q and D) docker container ls -a -q.

Step-by-step explanation:

To display all Docker containers (running or stopped) and list ONLY the Container IDs without the associated names, you should use the command that includes both the -a option (to show all containers) and the -q option (to display only the container IDs). The correct command is:

docker ps -a -q

Option C) docker ps -a -q is the correct choice because ps is the command to list containers, -a stands for 'all', which lists both running and stopped containers, and -q stands for 'quiet', which causes the command to return only the container IDs. Option D) docker container ls -a -q is also valid as docker container ls is the modern version of docker ps, and it performs the same function. Both commands will not list the associated names, as required.