Draw the basic communication model and describe the functionality of each component?(2). You are watching a YouTube video of 120 MB and 10mins duration. What is the bandwidth you required to watch this video without an interruption?i. What is the difference between analog and digital signals?ii. What is the process of converting an analog signal to digital? Explain the importance of sampling frequency(4) This signal is sampled to the values of 0, 2, 4, 5, 4, 0. Write this as a series of bits. (Each value may be represented by 3 bits)If the time duration of this signal is 10 microseconds what is the bandwidth required to transmit this signal?