C2090-600 Dumps Questions1.Which statement about NOT ENFORCED unique constraints is TRUE?A. NOT ENFORCED unique constraints can not be defined on primary key columnsB. The query optimizer will consider a NOT ENFORCED unique constraint whenselecting an optimal data access planC. When attempting to insert data that does not conform to a NOT ENFORCED uniqueconstraint, awarning will be returnedD. Storage requirements for a NOT ENFORCED unique constraint are no different thanthe storage requirements for a similar unique indexAnswer: A2.A table named MYTABLE contains an XML column and an XML storage objectdictionary already exists.What is the effect of enabling compression and then running the command REORGTABLE mytable KEEPDICTIONARY?