The linuxacademy videos are very good. Between the AWS practice test and the one with the course here, I was very comfortable with the test. There were one or two questions about discontinued products, but not enough to move my result since I knew the current stuff pretty well. My biggest challenge was remembering the stuff in the early videos once I got to the end because there is so much material, it's a good idea to go back and maybe review things that you might be fuzzy on. I thought that CloudWatch was a little overrepresented on the test. The questions were very conceptial in nature, I didn't get any questions on command syntax.