ocp题库更新,052最新考试题及答案整理-31
31、Which two events always request the LGWR to write?
A) when LGWR is notified by a server process that performs a Commit or ROLLBACK
B) When PMON restarts a server process
C) when DBWn writes dirty buffers
D) when a log switch occurs
E) when a checkpoint occurs
Answer:CD
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