Docker-Essentials

why is docker ps command is used?

• To see the stopped container

• To see the images

• To see the Running container

why its not the best practice to get connected to the primary shell?

• If we give exit command unintentionally container will be stopped

• primary shell doesn't have features has secondary shell

• secondary shell is faster

what is Docker?

• A virtual machine

• A container runtime

• A hypervisor

• A programmimg language

what is docker image?

• Its a small package which contains o.s , code and configuration to run my application

• Its nothing but docker container

• None of the above

what is docker hub?

• A public repository of docker images

• A tool for managing docker images

• A tool for monitoring docker hosts

what is the command to run container from an image?

• docker create

• docker run

• docker build

why we use -d command in docker?

• To attach to the terminal

• To get into seconday shell

• To run container in detach mood

we use port mapping To port the traffic from my host port to container port

• True

• False

docker container is running instance of my docker image?

• True

• False

we use -p in docker to port the traffic ?

• True

• False