A routing standard that creates a routing table based on distance vectors (hop-count) from the nearest routers is known as a what?

• A. Vector-based Routing Protocol
• B. Link-State Routing Protocol
• C. Hybrid Routing Protocol
• D. Path Vector Protocol

Answer: (A)

Distance-vector routing uses information from neighboring routers to build its view of the network, with the metric typically being the number of hops to reach a destination. The routing table is formed from these distance vectors that are exchanged with neighbors, so each router chooses the next hop based on the smallest reported distance. This description matches a vector-based routing protocol, which captures the idea of propagating distance vectors (hop counts) to determine routes.

In contrast, a link-state approach collects complete topology from all routers and uses a shortest-path algorithm to compute routes, so it’s not based on hop-count vectors from neighbors. A hybrid protocol blends techniques from both approaches but isn’t defined strictly by hop-count distance vectors. Path-vector protocols carry path information (like AS paths) for interdomain routing rather than hop-count distances.