What is the network topology? Describe different types of topologies & advantages and disadvantages with diagram.   NETWORK TOPOLOGY The physical layout of devices on a network. There are four basic topologies. 1. Mesh           2. Star              3. Bus              4. Ring   1. MESH TOPOLOGY: In Mesh topology every device has a dedicated point to […]

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DATA COMMUNICATION The exchange of data between two devices via some form of transmission medium such as wire cable etc.   TELE COMMUNICATION Tele is a Greek word for “Far”, so the Communication at a distance is known as Tele communication. It includes telephony, telegraphy and television.   Types of communication: Communication between two devices […]

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