I am currently doing an assignment and I am confused about these two questions:

1 Computers prefer to work with digital signals rather than analogue. (AC2.1)
a. Produce your own drawings comparing a digital signal to an analogue signal, explaining their differences.
b. Describe how each may be transmitted. The transmission method must be network related.

For a) I have drawn Analogue and Digital signal drawings, showing their differences.

For b) Is where I am stuck, technically all cabling transmits analogue, it just gets converted using ADC to digital at the end.

What is b) asking for? Have I fully answered a)?