How to Install IIS with PowerShell on Windows Server 2019

This is technical training video, showing how to Install IIS Web Server on Windows 2019 using PowerShell. It is shown how to safely remove old IIS server settings before the installation, how to check if IIS already installed, how to Install IIS and how to remove IIS using PowerShell.
As well demonstrated difference between PowerShell command and alias to the command.
For example:
Add-WindowsFeature web-server -IncludeManagementTools #alias version
Install-WindowsFeature web-server -IncludeManagementTools #direct command