Platform engineering is the discipline of designing and building toolchains and workflows that enable self-service capabilities for software engineering organizations in the cloud-native era.

Platform Engineering

I forget his exact name, but 'Adrian Cantrill' (or something similar) has a really excellent hands-on way of teaching AWS certs. Loads and loads of labs to build your practical knowledge in areas you may not be certain about.

Yup I been following Adrian Cantrill on the interested areas. Was
looking if someone had found any practice exam that is very near to real one. 

I'm fairly sure Adrian will have that covered, if you pay for his course. There are also some reasonable books on Amazon but if you focus on knowing the material then the examinations are easy. Exam-cramming is really self-defeating.