A router that directs packets between two separate LANS is called what?

• A. Interior Router
• B. Exterior Router
• C. Border Router
• D. Core Router

Answer: (B)

When a single device directs traffic between two separate LANs, it sits at the boundary where networks meet. This role is best described by the term border router (also called an edge router). It handles inter-network routing at the edge of an organization’s network, connecting internal LANs to other networks and deciding how packets should be forwarded toward their destination.

An interior router, in contrast, operates inside the network to route between internal subnets. A core router lives in the backbone of a network, moving large amounts of traffic within the core rather than at the network edge. An exterior or border-facing router refers more broadly to devices at the edge that connect to external networks (like the Internet), but the precise label for routing between two LANs is border router.