Quiz | Croma Campus

Which command is used to view the Docker version?

docker --version
docker -v
docker version
docker --ver

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Which Docker component allows you to run multiple containers on multiple hosts?

Docker Compose
Docker Swarm
Docker Machine
Docker Engine

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What is a Docker volume used for?

Storing Docker images
Persistent storage for containers
Networking containers
Scaling containers

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How do you start a stopped Docker container?

docker run
docker restart
docker start
docker boot

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How do you list all Docker volumes?

docker volume list
docker volume show
docker volumes
docker volume ls

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

docker pull
docker push
docker upload
docker send

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

docker logs
docker inspect
docker status
docker show

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How do you run a container in the background?

docker run -d
docker run -b
docker run --background
docker run --detach

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What is Docker Compose used for?

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

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What does CMD instruction in a Dockerfile specify?

The command to run in the container
The base image
The container environment variables
The ports to expose

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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

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Which option is used with docker run to publish a container's ports to the host?

-p
-v
-e
-d

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How do you connect a Docker container to a network?

docker network join
docker network add
docker network connect
docker network link

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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

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How do you scale services in Docker Swarm?

docker service scale
docker scale
docker-compose scale
docker swarm scale

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

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

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How do you check the Docker daemon logs?

docker logs daemon
docker log
systemctl status docker
docker info

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Which file is used to define a Docker image?

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

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What is the command to display real-time statistics of Docker containers?

docker stats
docker status
docker info
docker top

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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

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Which option is used to remove a container?

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

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What is the role of Docker Engine?

To manage Docker images
To provide the runtime for Docker containers
To build Docker containers
To orchestrate Docker containers

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What is Docker Machine used for?

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

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

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

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

overlay2
aufs
devicemapper
zfs

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What is the command to list all running Docker containers?

docker ps
docker ls
docker containers
docker list

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What is the purpose of a Dockerfile?

To manage Docker images
To manage Docker containers
To automate the deployment of applications inside containers
To define the steps to create a Docker image

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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

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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

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

docker swarm ls
docker node ls
docker nodes
docker swarm nodes

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