Which protocol type is responsible for sharing routing information within an autonomous system (AS)?

The Interior Gateway Protocol (IGP) is essential for sharing routing information within an autonomous system (AS). IGPs are designed to facilitate communication between devices within the same AS, allowing routers to exchange routing and topology information. Examples of IGPs include Routing Information Protocol (RIP), Open Shortest Path First (OSPF), and Enhanced Interior Gateway Routing Protocol (EIGRP). These protocols enable efficient data traffic management and routing decisions within the network, ensuring optimal paths are selected for data packets as they are forwarded through the AS.

In contrast, the other options either serve different functions or apply to different contexts. Exterior Gateway Protocols (EGPs), for example, are used to route data between different autonomous systems, not within a single AS. Static routing involves manually configuring routes and does not dynamically share routing information, limiting its use to very specific scenarios. Border Gateway Protocol (BGP) is a specific type of EGP and is utilized to exchange routing information between autonomous systems, emphasizing its role in inter-domain routing rather than within an AS. Thus, IGPs are clearly designated for the internal management of routing information within an autonomous system, making it the right choice in this context.