Clinical Trials practice

I am from Spain and I have prepared and given exam for SAS Clinical Trials Programmer today, I have passed the exam with 88%.
While starting the preparation, we have checked online the best method and I found an interesting article from Ms Palak, who have suggested this web's practice tool as a comprehensive and this is really helpful. I have not just got the questions but learned how to give the exam to get the maximum marks. I was able to structure my approach and that has helped me a lot.