1. An analog signal has a bandwidth of 20 Khz. If we sample this signal and send it through a 30 kbps channel what is the SNR dB. 2. What is scrambling? Compare NRZ-L and NRZ-I schemes. Compare Manchester and differential Manchester scheme.

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Types Of Protocols

A network protocol is a collection of rules that governs the exchange of data between devices connected to the same network. In other words, network protocols are rules that specify how devices communicate or transfer data over a network. The sender and receiver systems must obey the standards to facilitate communication between them.