Bellman-Ford — Cisco CCNA (200-301) Practice Questions

The Bellman-Ford algorithm is a path-finding method used by distance-vector routing protocols to calculate the shortest path to each destination network. Unlike link-state algorithms, Bellman-Ford works by having each router share its entire routing table with directly connected neighbors, allowing path costs to propagate hop by hop across the network. For the CCNA exam, understanding Bellman-Ford is important because it underpins how RIP operates and explains known limitations such as slow convergence and the count-to-infinity problem. Candidates are expected to recognize how these limitations led to the development of more advanced routing techniques.

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