Your company has an Active Directory Domain Services (AD DS) domain. You install the Remote Desktop Session Host (RD Session Host) role service and the Microsoft Application Virtualization (App-V) 4.6 client on a server that runs Windows Server 2008 R2. You publish applications to the RD Session Host server by using App-V.
Partner companies require access to an internal application. You provide each partner company with a preconfigured Remote Desktop Protocol (.rdp) file that enables the company to access the application by using the Connect From Anywhere feature.
You need to specify the protocol that each partner company must allow through its firewall to establish the connection.
Which protocol should you specify?（）

Your company has an Active Directory Domain Services (AD DS) domain . All servers run Windows Server 2008.
You install Remote Desktop role services on servers as shown in the following table.
Server name  Role service
Server1  RD Session Host
Server2  RD Web Access
Server3  RD Session Broker
You need to present a RemoteApp program by using Remote Desktop Web Access (RD Web Access).
What should you do?（）