Have you taken the recommended 4 day System Administration course?
How much experience have you had with NSP?
I have taken the 4 days training, and finished all the labs - but no luck with the exam.
A lot of question was difficult, any recommendations to prepare?
If you've already taken the course all I can recommend is practice. You should already have all the necessary documentation from the course.
If you can you should set up a test environment and get more practice with product. You can set up a virtual environment if you don't have the physical hardware.
How did you find the training? Would you recommend it to others?