Which statement accurately describes dynamic routing protocols?

• A. They learn routes from other routers
• B. They do not exchange route information
• C. They are always static
• D. They only work in small networks

Answer: (A)

Dynamic routing protocols adapt by having routers share information about reachable networks with their neighbors. Each router broadcasts routing updates, allowing all connected routers to learn about routes and form a collective view of the network. This shared knowledge enables automatic path selection and rapid recovery when links change or fail, because nearby routers advertise alternate paths as needed. That continuous exchange and updating is what keeps dynamic routing alive and responsive, unlike static routing which relies on manual, fixed paths. These protocols aren’t limited to small networks—they’re designed to scale, often using hierarchical designs and route summarization to manage larger topologies.