Month: August 2016

DATA LINK Layer – OSI Model

Data link layer is most reliable node to node delivery of data. It forms frames from the packets that are received from network layer and gives it to physical layer. It also synchronizes the information which is to be transmitted

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PHYSICAL Layer – OSI Model

Physical layer is the lowest layer of all. It is responsible for sending bits from one computer to another. This layer is not concerned with the meaning of the bits and deals with the physical connection to the network and

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ISO/OSI Model in Communication Networks

There are n numbers of users who use computer network and are located over the world. So to ensure, national and worldwide data communication, systems must be developed which are compatible to communicate with each other. ISO has developed this.

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Reference Models in Communication Networks

The most important reference models are : OSI reference model. TCP/IP reference model. Introduction to ISO-OSI Model: There are many users who use computer network and are located all over the world. To ensure national and worldwide data communication ISO

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