I was looking towards doing my MCAD certification but now can't. I was looking at the MCDBA as I work a lot with SQL Server 2000. I was wondering what happens if I was to take that including the development exams, Exam 70–305 or Exam 70-306. If I were to then do an MCAD certification would I be able to retake the exam I took previously or have to take the other one? Would this affect the MCSD as the exams appear there to.