HOTSPOT
Your network has a perimeter network and an internal network. A firewall named Firewall1 separates the perimeter network from the Internet. A firewall named Firewall2 separates the internal network form the perimeter network.
You have a Skype for Business Server 2015 infrastructure that contains an Edge Server and a reverse proxy server in the perimeter network.
You plan to deploy extensible messaging and presence protocol (XMPP) federation.
You need to create the firewall rules for the planned deployment.
How should you configure each firewall? To answer, configure the appropriate rules in the dialog box in the answer area.
Answer: 
Explanation:
References: https://docs.microsoft.com/en-us/skypeforbusiness/plan-your-deployment/edge-server-deployments/edgeenvironmental-requirements#PortFirewallPlan