Quiz | Croma Campus

What command is used to remove an image in Docker?

docker rmi
docker remove
docker del
docker delete

Mark for review

What is the purpose of the HEALTHCHECK instruction in a Dockerfile?

To specify the health check command for a container
To define environment variables
To define container volumes
To specify container ports

Mark for review

What is the purpose of the LABEL instruction in a Dockerfile?

To add metadata to an image
To define container environment variables
To specify commands to run
To define default ports

Mark for review

What is the purpose of the USER instruction in a Dockerfile?

To specify the user to run the container as
To define environment variables
To specify the user to build the image as
To define the base image

Mark for review

What is the Docker Hub?

A local Docker repository
A cloud-based Docker registry
A tool for building Docker images
A networking tool for containers

Mark for review

Which option is used to remove a container?

--delete
--remove
--rm
--del

Mark for review

What does the command 'docker system prune' do?

Removes all unused data
Removes all Docker containers
Removes all Docker images
Removes all Docker networks

Mark for review

What is the default name of the Docker network driver?

bridge
host
none
default

Mark for review

Which command is used to create a new Docker network?

docker network create
docker create network
docker net create
docker new network

Mark for review

What is the command to create a Docker secret in Swarm?

docker secret create
docker create secret
docker secret add
docker swarm secret

Mark for review

Which Docker command is used to see the logs of a container?

docker logs
docker inspect
docker status
docker show

Mark for review

What is the command to update a service in Docker Swarm?

docker service update
docker service change
docker swarm update
docker service alter

Mark for review

What is Docker Machine used for?

Creating and managing Docker hosts
Building Docker images
Running Docker containers
Orchestrating Docker services

Mark for review

How do you check the Docker daemon logs?

docker logs daemon
docker log
systemctl status docker
docker info

Mark for review

Which of the following is a Docker orchestration tool?

Jenkins
Kubernetes
GitLab
Travis CI

Mark for review

What is the command to list all running Docker containers?

docker ps
docker ls
docker containers
docker list

Mark for review

What is Docker Compose used for?

Managing Docker images
Defining and running multi-container Docker applications
Monitoring Docker containers
Building Docker images

Mark for review

What is a Docker volume used for?

Storing Docker images
Persistent storage for containers
Networking containers
Scaling containers

Mark for review

How do you access the shell inside a running Docker container?

docker exec -it
docker run -it
docker attach
docker connect

Mark for review

Which command is used to inspect a Docker container's details?

docker inspect
docker view
docker details
docker show

Mark for review

What is the command to list all nodes in a Docker Swarm?

docker swarm ls
docker node ls
docker nodes
docker swarm nodes

Mark for review

Which file is used to define a Docker image?

Dockerfile
Docker-compose.yml
Docker-config.yml
Docker-image.yml

Mark for review

How do you list all Docker volumes?

docker volume list
docker volume show
docker volumes
docker volume ls

Mark for review

What is the default storage driver for Docker on most Linux distributions?

overlay2
aufs
devicemapper
zfs

Mark for review

What is the purpose of the ARG instruction in a Dockerfile?

To specify environment variables
To define build-time variables
To expose container ports
To specify commands to run

Mark for review

How do you remove all stopped containers in Docker?

docker container prune
docker container rm
docker rm $(docker ps -a -q)
docker system prune

Mark for review

Which command is used to stop a running container?

docker halt
docker end
docker stop
docker pause

Mark for review

What is Docker Swarm?

A type of Docker container
A tool for monitoring Docker containers
Docker's native clustering and orchestration tool
A Docker storage driver

Mark for review

What is the purpose of the EXPOSE instruction in a Dockerfile?

To expose environment variables
To expose a container's ports
To expose container volumes
To expose container's filesystem

Mark for review

Which Docker command is used to push an image to a registry?

docker pull
docker push
docker upload
docker send

Mark for review

Online Exam Quiz

Online

Did you like this Question

Get a 1:1 Mentorship call with our Career Advisor