Research Questions Interacting with a Running Container

Run a container called webapp with image nginx, and in an interactive mode.

docker container run -it nginx
docker container run -it nginx --name webapp
docker container run nginx
docker container run -it --name webapp nginx

Which combination of keys are used to escape from the shell and keep the container webapp running?

Ctrl+c
Ctrl+p+q
exit, Ctrl+p+q
Ctrl+c, exit

Which combination of keys are used to exit from the shell and stop the container webapp?

Ctrl+c
Ctrl+p+q
Ctrl+p
Ctrl+z

You have a running container and want to execute a command inside it. Which command will you use?

execute
run
start
exec

We deployed a container called webapp. Inspect this container to get the IPPrefixLen.

docker container inspect webapp | grep IPPrefixLen
docker container top webapp | grep IPPrefixLen
docker container run webapp | grep IPPrefixLen
docker container logs webapp | grep IPPrefixLen

We have deployed some containers. What command is used to get the container with the highest memory?

docker container stats
docker container status
docker container top
docker container ls

How to display the running processes inside the container?

docker container top container-name
docker container stats container-name
docker ps container-name
docker container logs container-name

You have a webapp container and image httpd.
Inspect the logs of the webapp container.
Which command is used to get the stream logs of the webapp container so that you can view the logs live?

docker container log webapp
docker container log -f webapp
docker container logs webapp
docker container logs -f webapp

Which command returns only new and/or live events?

docker system info
docker container events
docker container events -f
docker system events

Which command returns events since the past 30 minutes?

docker system events since 30m
docker system events --since 30m
docker container events --since 30m
docker container events since 30m

Which command is used to get the events of the container named "webapp"? (This one is for you to read the documentation)

docker system events since 10m
docker system events --filter 'container=webapp'
docker system events --filter 'image=webapp'

Run a container named webapp with nginx image in detached mode. Select the right answer.

docker container run --detach --name=webapp nginx
docker container run --detach --name=nginx webapp
docker container create -d --name=nginx webapp
docker container create -d nginx

Stop the container named "nginx".

docker container halt nginx
docker container stop nginx
docker container rm nginx
docker container pause nginx

How do you list running & stopped containers?

docker container ls -a
docker container ls -q
docker container ls
docker container ls -q, docker container ls

Delete the “webapp” Container. Select the right answer.

docker container delete webapp
docker container remove webapp
docker container kill webapp
docker container rm webapp

Stop all running containers on the host. Select the right answer.

docker container stop $(docker container ls -a)
docker container rm $(docker container ls -q)
docker container stop $(docker container ls -q)
docker container stop --all

Delete all running and stopped containers on the host. (Explore the documentation to identify an option to force remove running containers)

docker container stop $(docker container ls -q)
docker container rm $(docker container ls -q)
docker container stop $(docker container ps -q)
docker container rm -f $(docker container ls -aq)

Which command is used to delete the stopped containers?

docker container remove $(docker container ls -aq)
docker container rm $(docker container ls -aq)
docker container prune
docker container rm --all

What is the command to pause a running container?

docker container pause
docker container --pause
docker container halt
docker container SIGSTOP

What are the signals sent to a running container when the docker container stop command is executed?

SIGSTOP followed by SIGKILL
SIGTERM followed by SIGKILL
SIGKILL followed by SIGTERM
SIGKILL followed by SIGSTOP

Research Questions Interacting with a Running Container

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