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單項選擇題

Which of the following commands cannot use the functionality assosciated with theNLS_DATE_FORMAT variable？（）

A.RESTORE
B.RECOVER
C.REPORT
D.BACKUP

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單項選擇題

What is the maximum number of ARCn processes that can be defined using the initialization parameter LOG_ARCHIVE_MAX_PROCESSES？（）

A.1
B.5
C.10
D.15
E.Depends on system memory resources

單項選擇題

Which background process is responsible for writing the dirty buffers from the write list to the data files during a checkpoint？（）

A.CKPT
B.SMON
C.LGWR
D.DBWn
E.ARCn

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