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Oracle 11G OCP 1Z0-052 19

原创 Oracle 作者:LuiseDalian 时间:2014-06-05 06:15:05 0 删除 编辑
(19)Which two statements about the background process of the database writer are true? (Choose two.)

A.It is possible to have multiple database writers in an Oracle instance.

B.It writes dirty buffers, if any, to data files whenever a checkpoint occurs.

C.It writes dirty buffers, if any, to data files whenever a transaction commits.

D.It writes dirty buffers, if any, to data files before the log writer (LGWR) writes.

答案:(A、B)

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