Your company has three offices. The offices are located in Seattle, Chicago, and Montreal.
You are configuring a new WAN link between the three offices by using the Remote Access server role in Windows Server 2016. You will use Border Gateway
Protocol (DGP) as a routing protocol between the sites.
You need to configure the server in the Seattle office for BGP routing.
What should you do first?
A. From Routing and Remote Access, add a new IPv4 routing protocol
B. From Windows PowerShell, run the Add-BgpPeer cmdlet and specify the -LocalASN parameter
C. From Routing and Remote Access, add a new IPv6 routing protocol
D. From Windows PowerShell, run the Add-BgpRouter cmdlet and specify the -LocalASN parameter
https://blogs.technet.microsoft.com/networking/2013/10/11/border-gateway-protocol-bgp-with-windows-server-2012-r2/
BGP uses the concept of Autonomous Systems (AS) and AS numbers (ASN) for routing decisions.
You must assign your own BGP router with a local ASN first before connecting successfully to any BGP remote peers for exchanging routing information.