I took the exam last week and passed it. Exam was 55 questions, I pass with 72%. Couple areas I noticed a lot questions from was API Gateway and of course VPC. You have to know VPC very well to pass the test. I think there was at least 5-6 questions on API Gateway which kind of surprise me. Whizlabs practice tests are really awesome. I don't think any other sites provide as much level of details and explanation as they do. I highly recommended it but don't expect the same exact questions to show up in the exam, you really have to read the explanations and understand the topics.