I want to warn you, at least as of a month ago when I renewed my professor test, there were questions on the exam that assumed information that is no longer valid.
The first time I took the test (and failed) a few questions on there assumed Pre-BW rules (what can be played on first turn and what can't as well as other changes) and other questions assumed post-BW rules.
There was even one question with an answer that explicitly called out a portion of a rule that's been changed in B/W and that answer was considered the correct one...even though another answer for that question was "more correct" based upon current rules.
All I'll say is "be careful" with the questions. If there is a ruling in the compendium on a given question, even if that ruling is out of date or no longer valid based upon current rules, the likelihood is it's the answer the test wants, regardless of whether that answer is currently right or wrong based upon the B/W rules.
To be fair, however, I got several questions wrong that were purely my mistake. Had I gotten those right, even with missing the questions I consider not updated properly for current rules, I would have passed.
Of course, this was my experience just over a month ago...your mileage may vary as when I complained (after I was told tough luck, take it again) I was told it would be "looked at"...more updates may have happened since.
--Illydth