Hello! Some of the exam questions are based on general network-management concepts, and others are based on experience with our Network Performance Monitor software product. The questions that cover NPM are not version specific.
Here is a link to the SCP prep site: http://www.solarwinds.com/certification/network_certification.aspx . It is intended to be a review using the videos, program summary, prep guide & other content a test taker will need to know prior to taking the exam.
Another section that offers really informative videos and live webcasts is SolarWinds Lab: https://thwack.solarwinds.com/community/labs_tht/solarwinds-lab.