On the 70-417 exam, only 14 of the original 18 domains and 22 of the original 62 objectives have been adopted from these three source exams [70-410, 70-411,70-412]. This smaller subset of material corresponds generally to the new features in Windows Server 2012. Approximately 75 percent of the questions on the 70-417 will assess your knowledge of new Windows Server 2012 features in some way. Approximately 25 percent of the questions will be "review" questions about features that have not changed since Windows Server 2008 - questions you could have seen when you earned your existing certification. The questions that comprise this 25 percent can be taken from any of the 62 original objectives on exams 70-410, 70-411, or 70-412.