Answer to Question #248782 in Computer Networks for Blackie

Question

 Describe the four abstraction layers of TCP/IP

Answer 1

1. Application layer -it interacts with an application program, which is the highest level of 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 application.

2.Transport layer - it 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.

3.An internet layer - this is a second layer of TCP/IP layers of the TCP/IP model. It is also referred 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.

4.The network interface layer -this layer is also called a network access layer. It helps you to define details of how data should be sent using the network.

It also includes how bits should optically be signaled by hardware devices which directly interfaces with a network medium, like coaxial, optical, coaxial, fiber, or twisted-pair cables.