For details on exam requirements, visit our certification page at http://www.netapp.com/us/support/university/certifications/ncda.html. To get all of your questions answered regarding the NS0-155 exam, visit our FAQ page here: http://www.netapp.com/us/support/university/certification-faq.html#faq14B. Also, there is a practice exam that will help you understand what areas you may need to focus on in order to pass the NS0155 Exam: http://now.netapp.com/NOW/products/education/public/certification/NS0-154-PRACTICE/index.html.
There is a link for the NS0-155 practice exam but it is not working:
Also, I cannot find anywhere that says if passing is 75% or 80%, and if the question is 60 or 75 questions.