What type of network is accessed by a single route and the router has only one neighbor?

Question

BlackTom AI · Accepted Answer

Question: What type of network is accessed by a single route and the router has only one neighbor?

Option 1: Local network
- This is generally understood as a network that is locally reachable within the same broadcast domain or LAN segment. The clue about a single route and one neighbor does not align with the typical characteristics of a local network, which can contain multiple routes and neighboring devices.

Option 2: Stub network
- Correct reasoning: A stub network is a network that has only a single exit point toward the rest of the network, meaning the router toward that network has only one neighbor and there is a single route to reach it. Because there is just one path to reach the stub network, it fits the description given in the question.

Option 3: Next-hop network
- The term next-hop network or next-hop concept refers to the next router a packet should be sent to on the path toward a destination. It does not by itself define a network accessed by a single route with only one neighbor; it’s more about the forwarding path rather than the topology being a stub.

Option 4: Directly connected network
- A directly connected network is one that is attached to the router’s interface. While it is true that such networks are immediately reachable, the phrasing about “accessed by a single route and the router has only one neighbor” specifies a topology constraint (one exit point) that is characteristic of a stub network rather than merely being directly connected.

Summary: The statement in the question describes a topology where there is a single route and one neighbor, which matches the definition of a stub network, distinguishing it from general local, next-hop, or directly connected networks.

What type of network is accessed by a single route and the router has only one neighbor?单项选择题

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