BairesDev interview questions

I chose my tech stack. I was given some automated online tests based on my tech stack. We can take them anytime in any order. Some of them can be taken only once. Thhere were Coding tests, and quizzes. I haven't completed all of them. Some C++ questions were very advanced. Be prepared before attempting. Only one attempt will be allowed. The test duration was around 2 hours I think. I haven't completed all the tests.