An Interior Gateway Router is used for information exchange within which scope?

An Interior Gateway Router is used for information exchange within which scope?

• A. Local area network
• B. Autonomous system
• C. Internet
• D. Data center

Answer: (B)

An Interior Gateway Router operates inside one autonomous system, using interior gateway protocols to exchange routing information and build a consistent internal routing table. An autonomous system is a collection of networks under a single administrative domain with one set of routing policies. Exterior routing protocols handle connections between different autonomous systems, which is why the interior gateway router’s scope is within the autonomous system. While data centers or LANs are parts of an AS, the key concept is that interior routing stays inside that single administrative boundary, whereas the Internet itself involves inter-AS routing.

An Interior Gateway Router operates inside one autonomous system, using interior gateway protocols to exchange routing information and build a consistent internal routing table. An autonomous system is a collection of networks under a single administrative domain with one set of routing policies. Exterior routing protocols handle connections between different autonomous systems, which is why the interior gateway router’s scope is within the autonomous system. While data centers or LANs are parts of an AS, the key concept is that interior routing stays inside that single administrative boundary, whereas the Internet itself involves inter-AS routing.