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Well as for the question, "Discuss the difference between analogue and digital transmission."
Analog signals are basically electromagnectic waveforms and they fluctuate and change continuosly. Where as digital signals change from one state to another almost instantaneously, similar to ones and zeros or on and off. Digital signals are less vulnerable to errors from interference (caused by flouresent lighting near a cable). Oh, and anolog is less vulnerable to attenuation (or signal loss) from say, the length of a cable.
There is also differences in how the two are measured, but I don't know if you need to that. I hate to say it but that's about all I can answer from your said questions.
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