I took the 70-291 exam today.
Microsoft kicked me in the crotch on this one... I scored a 657.
Apparently they changed the test recently because my official MS book (2nd Edition even) has 1/2 of a page devoted to WSUS while the online MS E-Learnings never even mentioned it. Guess how many questions out of the 46 on the test were related to WSUS? At least freakin' 10 or 15!!!! Way to go on screwing me Microsoft.
Even on their website
http://www.microsoft.com/learning/exams/70-291.mspx it says that everything on the exam is covered in the E-Learnings. Maybe they should change that.
There were also only 2 labs on the test as well. That seemed strange to me and probably didn't help me out any. On my 70-290 exam there were 6 and I felt more comfortable doing that test because actually doing something instead of answering a stupid multiple choice or checkbox question seems more relevant to me.
Anyway, I'm going to play around with WSUS and brush up some more on RRAS this weekend and take the test again Monday. Better to retake a test soon than wait and forget some stuff. I know that if I had studied WSUS that I would've passed but not even my practice exams mentioned it (Preplogic).