Docker Quiz

What is Docker primarily used for?

• Version control

• Text editing

• Containerization

• Virtualization

Which Docker command is used to list all running containers?

• docker list

• docker show

• docker display

• docker ps

What is the main difference between a Docker image and a container?

• An image is running, while a container is static.

• An image is a blueprint, while a container is a running instance of that image.

• Images and containers are the same thing in Docker.

• Containers are used to build images.

Which Docker command is used to build an image from a Dockerfile?

• docker compile

• docker run

• docker create

• docker build

How can you persist data in Docker containers?

• Using Dockerfiles

• Using persistent containers

• Using volumes

• Using environment variables

Which Docker command is used to push an image to Docker Hub or another registry?

• docker upload

• docker commit

• docker push

• docker save

What is Docker Compose primarily used for?

• Defining and running multi-container Docker applications

• Managing layers within a Docker image

• Creating isolated environments for Docker containers

• Compressing Docker images for efficient storage

What is the default base OS of the Docker Alpine image?

• CentOS

• Ubuntu

• Fedora

• Alpine Linux

If you want to override the default command of a Docker image, which of the following can you use?

• CMD

• RUN

• OVERRIDE

• BUILD

What is the purpose of the docker run command in Docker?

• To build a Docker image

• To stop a running container

• To create a new Docker container instance

• To inspect the details of a Docker image