TCP/IP Model has Four-Layer ArchitectureApplication LayerThe application layer interacts with an application program, which is the highest level of the OSI model. The application layer is the OSI layer, which is closest to the end-user. It means the OSI application layer allows users to interact with other software applications.Internet LayerAn internet layer is a second layer of TCP/IP layers of the TCP/IP model. It is also known as a network layer. The main work of this layer is to send the packets from any network, and any computer still they reach the destination irrespective of the route they take.Transport LayerThe transport layer builds on the network layer in order to provide data transport from a process on a source system machine to a process on a destination system. It is hosted using single or multiple networks, and also maintains the quality of service functions.The Network Interface LayerNetwork Interface Layer is this layer of the four-layer TCP/IP model. This layer is also called a network access layer. It helps you to defines details of how data should be sent using the network.Difference Between OSI and TCP/IPOSI ModelTCP/IP modelOSI refers to Open Systems Interconnection.TCP refers to Transmission Control Protocol.OSI uses the network layer to define routing standards and protocols.TCP/IP uses only the Internet layer.OSI model use two separate layers of physical and data link to define the functionality of the bottom layers.TCP/IP uses only one layer (link).OSI layers have seven layers.TCP/IP has four layers.Session and presentation layers are not a part of the TCP model.There is no session and presentation layer in the TCP model.