Which command shows all containers, including those that have exited?

Which command shows all containers, including those that have exited?

• A. docker ps
• B. docker container list
• C. docker ps -a
• D. docker container list -a

Answer: (C)

To see all containers, including those that have exited, you use the -a flag with the list command. Docker ps shows only currently running containers by default, so adding -a expands the view to include every container in any state (running, paused, exited, etc.). This is why the correct command is docker ps -a: it reveals the full set of containers and their final statuses, such as Exited, along with exit codes. If you’re using the newer CLI namespace, docker container ls -a is equivalent, but the essential concept is using -a to show all containers.

To see all containers, including those that have exited, you use the -a flag with the list command. Docker ps shows only currently running containers by default, so adding -a expands the view to include every container in any state (running, paused, exited, etc.). This is why the correct command is docker ps -a: it reveals the full set of containers and their final statuses, such as Exited, along with exit codes. If you’re using the newer CLI namespace, docker container ls -a is equivalent, but the essential concept is using -a to show all containers.