The best site to prepare

I am from Hong Kong. I desired to be a Salesforce B2C Commerce Architect. My approach is to tackle any certification exam through practice. I was searching for the best site that helps me in practice and this is what i came across. Vmexam.com is the answer to all the preparation questions. It offers you the premium question banks to practice for the exam. The question sets have given almost equal weightage to the topics, which helped me a lot to prepare. I am sure to recommend the site to my friends as the site has helped me secure good score in the actual exam.