Final answer:
The network layer in the OSI model is concerned with finding the best path for data within the network.
Step-by-step explanation:
In the OSI model, the network layer is concerned with finding the best path for the data from one point to the next within the network. This layer takes care of addressing, routing, and forwarding the data packets.
The network layer uses IP addresses to identify the source and destination of the data. It also determines the best path for the data using routing protocols such as OSPF and BGP.
For example, when you send an email from your computer to a friend's computer in another country, the network layer ensures that the data takes the most efficient route to reach its destination.