OCP认证052考试最新题库及答案整理-38

38、Which two are true about data dictionary and dynamic performance views (v$ views)? A) All database users have access to ALL_* views. B) Data dictionary view output is subject to read consistency. C) The defining queries for Oracle supplied dynamic performance views are stored In the data dictionary. D) All v$ views display output when queries, if the instance is in nomount state E) All database users have access to all v$ views. Answer:AB 北京CUUG整理，转载请注明，OCP讨论群：569933648/836361015