How do I give the unity certified user exam?

Helo! I have been using unity for a while and now I want to take the unity certified user test. But how do I take it, what are the steps to take it and are there any practice exams available ? if yes, then can someone pls share a refrence to it.

You only need to buy the exam voucher follow this link

Also regarding the examns available, when I took the examn some years ago it was really hard to find the example examns, I only found 2 or 3 example examns, so if you are not confident enough and you are looking to learn consider joining a course instead of buying the examn directly.