Quiz | Croma Campus

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

docker stats
docker status
docker info
docker top

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Which option is used with docker run to set environment variables?

-e
-v
-p
-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 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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How do you attach to a running Docker container?

docker connect
docker attach
docker join
docker 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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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 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

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How do you start a stopped Docker container?

docker run
docker restart
docker start
docker boot

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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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What is the default name of the Docker network driver?

bridge
host
none
default

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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 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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Which command is used to restart a Docker container?

docker restart
docker rerun
docker reload
docker renew

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What does the command 'docker system prune' do?

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

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

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

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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 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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How do you rename a Docker container?

docker rename
docker name
docker mv
docker retag

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

To specify the default command to run
To specify environment variables
To specify default ports
To specify base image

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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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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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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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Which command is used to create a Docker container?

docker run
docker build
docker create
docker start

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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 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

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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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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 check the Docker daemon logs?

docker logs daemon
docker log
systemctl status docker
docker info

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