This is super-helpful, it helped me pass the exam. After doing the domain tests, I delayed my exam a month. They are hard tests. Going to take exam January. This is a fantastic and absolutely necessary tool. Don’t let it be disheartening when you mess up the domain tests, just learn from them. Trust me when I say, use this and maybe 11th hour for a summary and the free skill set videos on YouTube and you will pass. Good luck.