OCP认证052考试最新题库及答案整理-46

46、Which three are true about undo segments and undo tablespaces in the same database and instance? A. Multiple transactions run by the same Oracle user can share a single undo segment. B. Multiple transactions run by different Oracle users can share a single undo segment. C. A serial transaction can use multiple undo segments. D. Undo segments are automatically dropped shortly after transactions that use them commit. E. A new undo segment is always created for each transaction. F. A database can have multiple undo tablespaces. Correct Answer: ABF 北京CUUG整理，转载请注明，OCP讨论群：569933648/836361015