This was my first AWS exam, it was more difficult than I thought it would be, probably rightly so if you want to be certified; if you're taking the exam, make sure to study all the little things you might think are not so important! The exam doesn't just ask about EC2 and S3 and the other "main" offerings -- you'll need to really understand all the smaller topics mentioned in the linuxacademy course. I only studied through linuxacademy and personal practice. I think the AWS CSA course here is monumental -- it's a huge treasure trove of information and advice on best practices. Thanks LA!