I agree on the part concerning copyright and distributing Q&A from the exam.
On the other hand there isn't much testmaterial at hand.
I myself took the ISNG course but would like to see some more testing material. Not taken from the official exam
http://www.tiffany-jewellery.net/ but just questions like in the studyguide from NS, to test yourself and to get a grasp of what they are going to ask you.
Compared to Cisco and Microsoft there isn't much material around to guide you to the official exam.