The video tutorial explains how to install Docker using the Docker repository. It covers setting up the repository, updating packages, and installing necessary prerequisites like CA certificates and APT transport. The tutorial details the installation of Docker CE and its dependencies, container.io and Docker cicli. It also guides on installing specific Docker versions and concludes with running a Docker container using the Hello World example, demonstrating the download and execution of a container image from Docker Hub.

Which of the following is NOT a prerequisite package for setting up the Docker repository?

• CA certificates

• Node.js

• APT transport

• GNU G

What is the main Docker package that needs to be installed?

• Docker CE

• Docker CLI

• Docker Hub

• Container.io

Which command is used to list available Docker CE versions on your system?

• apt-cache madison docker

• docker version list

• docker --list-versions

• apt-get docker versions

What is the purpose of running the 'Docker run Hello World' command?

• To list all Docker images

• To verify the Docker installation

• To update Docker to the latest version

• To uninstall Docker

If you want to install a specific version of Docker CE, what must you do first?

• Restart your system

• Download the Docker source code

• List available versions using a specific command

• Uninstall the current Docker version