HOTSPOT - You have an on-premises datacenter that contains the hosts shown in the following table. 

You have an Azure Active Directory (Azure AD) tenant that syncs to the Active Directory forest. Multi-factor authentication (MFA) is enforced for Azure AD. You need to ensure that you can publish App1 to Azure AD users. What should you configure on Server and Firewall1? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point. Hot Area: 

Reference: https://docs.microsoft.com/en-us/azure/active-directory/manage-apps/application-proxy