I do not recommend this course. 1. The course is old, so there are some parts that do not apply to the latest versions of AWS and other platforms. In other words, the course needs to be updated. 2. Likewise, since it is an old course, there are no answers to questions or the answers are too late. 3. To be honest, it is not a free course, but a paid course, and there are many errors. I recommend that you take the latest Docker course instead.