Question

The dod model (also called the tcp/ip stack) has four layers. which layer of the dod model is equivalent to the network layer of the osi

Answer 1

The Internet layer of the dod model is equivalent to the network layer of the OSI model.  

This layer delivers data across various physical networks that connect a source machine with its destination machine. It acts as the sole network interface for the upper layers in the dod model.  Routing protocols are closely related with this layer.