Presentation layer
Introduction The presentation layer is the layer 6 of the OSI reference model. It is responsible for defining how information is transmitted and presented to the user interface.
Network layer
Introduction The third layer of the osi reference model is network layer. It is responsible for providing functions for a logical topology of your network using logical addresses.
Data link layer
Introduction The second layer of the osi reference model is data link layer. This layer provides functions and procedures required to transfer data between physical entities