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OCP-052考试题库汇总(19)-CUUG内部解答版

Which three events always result in a write request made to the LGWR process?

A)after undo is applied by PMON during process recovery

B)when dirty buffers are found during the processing of a checkpoint

C)when the password file is updated

D)when an Instance Is shutdown

E)when flashback logs are updated

Answer: ABD

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posted @ 2019-08-05 10:16  cnblogs_5359  阅读(126)  评论(0)    收藏  举报