A regional ISP runs one routing protocol among its own routers inside its single autonomous system, and a different protocol to exchange reachability information with its separate upstream transit provider's autonomous system. Which pair of terms correctly labels these two protocol roles?
Select an answer to reveal the explanation.
Short Explanation
Inside your own network, you run an IGP — it stays home. Between separate networks run by different organizations, you need an EGP to talk across that boundary. It's a distinction about where the protocol operates, not which specific protocol it happens to be.
Full Explanation
An Interior Gateway Protocol (IGP) operates within a single autonomous system, exchanging routes among routers under one organization's administrative control — this is exactly the role of the protocol the co-op runs among its own routers. An Exterior Gateway Protocol (EGP) exchanges reachability information between separate autonomous systems, which matches the second protocol's role of talking to the transit provider's independently administered network. Labeling the pair as link-state versus distance-vector describes a completely different axis — how a protocol learns topology — and either category could in principle be used as an IGP; that classification doesn't map onto interior-versus-exterior scope at all. Calling them static versus dynamic is also a mismatch: both protocols in this scenario are dynamic (they exchange routes automatically), and IGP/EGP has nothing to do with static configuration. There's no standard classification of protocols as 'forwarding-table' versus 'routing-table' protocols; every dynamic routing protocol populates the routing table the same way, so this pairing isn't a real distinction. The scope note for JN0-106 is recognizing IGP-versus-EGP conceptually and typical examples of each category, not configuring or deeply comparing specific protocol behaviors. A conceptual check is asking which administrative boundary a given protocol session crosses — staying inside one organization signals IGP, crossing between organizations signals EGP.