Let me start with the note, I have cleared my Data Science and Big Data Analytics exam with 94%, Bang.
This would not have been possible without practicing with's practice exams. The Practice exam covers all the topics and has accurate answers too. This has helped me work more on the point where I was weak, thus help me become an expert before going to the final exam. I was quite confident when I started my certification exam on getting 90% and same has happened. Thank you.