I was going to write about the exam format and resources that are available to exam candidates, but came across a few other sites that can provide this information.  So rather than reinventing the wheel, I have created the links below for your convenience.

Dr Vinh Tran
MBBS FRACGP University of Qld
Supervisor for GP trainees for GPTQ and Medical Students at Griffith, Bond and UQ
Accredited TripleP Provider