Question 1: We measure the performance of a telephone line (4 kHz ok bandwidth). If the signal is 10 volts, the noise is 5 mill volts. Then determine the maximum data rate supported by this telephone line?
Question 2: Illustrate the difference between encoding and modulating?
Question 3: Illustrate the term digital-to-digital encoding?
Question 4: What do you mean by digital-to-analog and analog-to-digital conversion?
Question 5: What do you mean by analog-to-analog conversion?
Question 6: Why is frequency modulation superior to the amplitude modulation?
Question 7: What is the benefit of QAM over the ASK or PSK?
Question 8: What do you mean by DC component?
Question 9: Why is synchronization a difficulty in the data communication?
Question 10: How does NRZ-L distinct from NRZ-I?