You have an Azure subscription that contains eight virtual machines and the resources shown in the following table. You need to configure access for VNET1. The ...

You have an Azure subscription that contains eight virtual machines and the resources shown in the following table.

You need to configure access for VNET1. The solution must meet the following requirements:
• The virtual machines connected to VNET1 must be able to communicate with the virtual machines connected to VNET2 by using the Microsoft backbone.
• The virtual machines connected to VNET1 must be able to access storage1, storage2, and Azure AD by using the Microsoft backbone.
What is the minimum number of service endpoints you should add to VNET1?