Passed Certified Developer - Associate (released june 2018)
Just a little feedback on the AWS CDA (without disclosing AWS NDA).
I found the exam more challenging than the AWS Solution Architect because as you have to know how to deploy the solution covered in the course topics, you have a more wide of pottential questions.
I prepared with the Linux Academy Developer course 2018, I already have the AWS CSAA
I think that if you don't have experience in the topic covered in the courses it's REALLY REALLY important to make the Linux Academy AWS Labs and try to make the AWS Documentationg getting started, samples, use cases and tutorials.