Unity Programmer Certification Preparation Material

Hi Everyone,
I just finished the exam for the Unity Programmer Certification and guess what. I failed for 3 points![argh!]

This test really proves your knowledge and I can say that overall it's a very good certification to have on your side as a developer! I will try again ....
However, I wonder if anyone know if there is any appropriate material to prepare students for the test.

I went through the official preparation course offered by Unity and I noticed how actually different were the questions included in the real test. I realized that I am not the only one on this forum to realize about the mismatch.

See this thread.
https://forum.unity.com/threads/just-did-the-exam.836203/

I would really appreciate the support of experts.

Thank you.