Dynamic routing automatically calculates the best path between how many nodes?

Dynamic routing protocols are designed to discover network destinations and to efficiently calculate the optimal path for data to travel across a network. In the context of routing, nodes refer to network devices such as routers. Dynamic routing protocols can adapt to changes in the network, including failures or new paths, allowing them to determine the most efficient routes based on current network conditions.

To understand the concept better, when referencing the calculation of the best path, it's important to note that dynamic routing involves interactions among multiple nodes. While a dynamic routing protocol such as OSPF (Open Shortest Path First) or EIGRP (Enhanced Interior Gateway Routing Protocol) can certainly involve more than two nodes (which is often the case in real-world networks), the critical function of routing, at its most fundamental level, is determined between a pair of nodes – the source node and the destination node.

Therefore, considering the way routing calculations are typically first viewed conceptually, it can be seen that dynamic routing fundamentally focuses on calculating the best path between two nodes at any given time. This does not imply that dynamic routing cannot involve numerous devices simultaneously; rather, it highlights that the main routing decision affects the journey of data from one specific source to one specific destination.