If it's your first exam in NZ you'll definitely want to get some sample exams or talk to some people who know the format. ASL are notorious for making exams with vague or misleading questions that test English comprehension and problem solving skills more than syllabus knowledge.
It forces people to study for the exam rather than understanding the practical application of the knowledge, but it is what it is I guess.
Personally I found discussing, debating, and researching The Act, the rules, and the ACs with other aviation people was a good way to make it more interesting.