Help and tips for learning and understanding the AWS Solution Architects course

Hello, I would like some advice. I am taking the AWS Solution Architect course, but I am unable to answer the quiz correctly, particularly for DB and “Applications.” Do you have any advice for me? Also, I would like to know what the purpose of the “Designing for…” course is, which is in the second part. I haven’t gotten to that part yet; I’m currently on the “ML” part. Does it help to better understand the course and therefore be able to answer the previous questions, or is it necessary to fully understand and correctly answer the previous quiz before moving on to this step?

I hope that’s clear.

Best regards,

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