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What is the primary purpose of Docker?
To create virtual machines.
To automate the deployment of applications inside lightweight containers.
To manage physical servers.
To provide a cloud storage solution.
Which of the following commands is used to build a Docker image?
docker create
docker build
docker run
docker image create
What is the purpose of a Dockerfile?
To define the environment variables for a container.
To specify the instructions for building a Docker image.
To manage container networking.
To store persistent data.
Which of the following statements about Docker containers is true?
Containers are heavier than virtual machines.
Containers share the host OS kernel but run in isolated user spaces.
Containers can only run Linux applications.
Containers are ephemeral and can be easily recreated.
What command is used to list all running Docker containers?
docker ps
docker list
docker containers
docker show
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9 Modules