I took and passed yesterday. I'd say the test covers some of both types of questions. In fact, the exam on this site felt a bit more black and white whereas the exam at the test center had more nuanced questions. I know of no resourses that can help though there must be some. My advice is when you are learning stuff, especially when you question some some of the answers during learning, do try to understand the 'WHY' things are said to be a certain way. This will help with question where you feel more than one option could be right.
A shout out to the Pearson VUE test center in Chester. It was really well run and the staff were lovely.
