https://azure.microsoft.com/en-us/pricing/details/lab-services/

Azure Labs has been created to facilities VMs labs in self-study mode. DaDesktop has been created to server Instructor-led online and self study courses.

DaDesktop allows participants and trainer desktops to communicate with each other via Course VPN.

DaDesktop allows sessions to be recorded and reviewed.

DaDesktop allows to take the desktop snapshots and restore from it.