Ontario Highway Traffic Act

I'm a bit confused about answers on one thing: some posters are saying the driving prohibition is for 1 year, others seem to suggest something different. So, my questions are:
1. Does a G1 have to retake his G1 if he is convicted of failing to blow?
2. If there is a 1 year prohibition, does that mean 1 year before going back to driving as a learner ...