I cleared Test286 yesterday. I didn't have much preperation though. I have been working with WSAD from last 1 year, that helped a lot. Lot of questions are very similar to sample exam questions but more confusing. Lot of questions on views and web developement.I got very less in Data and profiling sections as I never experimented with those perspectives. So be sure to have some practical experience in those perspectives.
If any of you any specific questions, am free to answer you,