Explanation/Reference:
Section: Addressing and Routing Protocols in an Existing Network Explanation Explanation:
Of the available choices, you are least likely to use Border Gateway Protocol (BGP) if you are routing traffic between company departments that reside in the same physical location. BGP is more likely to be used to route traffic from a network in one autonomous system (AS) to traffic in another AS. Unlike some other routing protocols, BGP does not use a neighbor discovery process. Therefore, neighbor relationships between a BGP router and a router in either the local AS or a remote AS must be manually configured.
Most likely, you would use Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), or static routes to route traffic between company departments that reside in the same physical location. Both OSPF and EIGRP support neighbor discovery. However, the neighbors must reside in the same EIGRP AS or OSPF area for those processes to work without extra configurations such as manual configuration or a remote neighbor or a virtual link.
The use of static routes in this scenario would depend on the level of complexity and the desired level of scalability in the network topology. If you were simply connecting two branches in different virtual LANs (VLANs) and never planning to expand, static routes would keep router CPU overhead and configuration complexity to a minimum.
Reference:
CCDA 200-310 Official Cert Guide, Chapter 11, BGP Neighbors, pp. 444-445 Cisco: Cisco IOS IP Routing: BGP Command Reference: neighbor remote-as