Passed 290 today now on to the beast!

I just passed 70-290 with a score of 900 today. I wasn't sure if I was going to pass or not. Going for MCSA so now it's on to the beast for me. What are the best areas to focus on when studying for 70-291?
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Comments
DNS, DHCP, RRAS, IPSec, and RRAS are all major areas of 291.
DNS & RRAS are MAJOR's, make sure you know them inside and out.
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Let it never be said that I didn't do the very least I could do.
Can you tell us some information about exam 70-290 ,
The number of questions ?
The Number of Sims ?