srf from Poland – 03 21 2012, 8:14 PM Report Spam petronellius I agree. And this answer is correct according to the previous dump astika from Bulgaria – 03 20 2012, 7:24 AM Report Spam Still valid dump. Pass but many wrong answers ib Planning and Solution deployment petronellius from Slovakia – 03 16 2012, 3:48 PM Report Spam Hi,there is a question about using of DAL obejcts: "…You need to ensure that the DAL entity objects are updated when the database schema changes.What should you do?A. Create an observable collection of objects.B. Create typed DataSets.C. Create persistent-aware objects.D. Create persistent-ignorant objects.Answer: D" I don't think D is correct answer.Persistence Ignorance means that the business logic itself doesn't know about persistence. Or in other words, persistence is separated from logic. I would pick C. Persistence-aware entity types – types that derive from EntityObject (base class for entity types that are generated by the Entity Data Model tools).