Technical Interviews: Excel with Ease

Block 11

Communication Systems

1. What is sampling theorem?
2. What is Nyquist sampling rate?
3. There is a term called anti-aliasing related to sampling. Do you know what it is?
4. Since sampling rate is a function of the frequency of the signal to be sampled, there are sampling techniques that can achieve much higher effective sampling rates for repetitive signals. Are you aware of any such technique?
5. Name an analog modulation technique in which the bandwidth of the modulated signal depends on both the magnitude as well as the frequency of the modulating signal.
6. Which theorem states that if a voltage V at one point in a network produces a current I at a second point in the network, then the same voltage V acting at the second point will produce current ...