Practical communication example for a data rate scenario Having difficulty with the following question.
I can answer parts I and II but having trouble finding a practical example.
Question:

Compute the maximum data rate of the following communication links;
I) 4000Hz bandwidth and a signal to noise ratio(SNR) of 20dB;
II) noiseless channel of 2.4GHz bandwidth with 64 signalling levels;
Provide a practical communication example for each scenario.

Any help would be greatly appreciated.
4kHz bandwidth and 20dB SNR is telephone communication.
2.4GHz with 64 signaling levels is WiFi with 64QAM if I understood correctly. In that case bitrate is 6 * baud.