多项选择题

Which two RMAN commands initiate a resynchronization of the recovery catalog with the target database control file？（）

A.COPY
B.BACKUP
C.CHANGE
D.DELETE
E.CATALOG

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单项选择题

You issue these LSNRCTL commands： LSNRCTL> SET CURRENT_LISTENER listener01 LSNRCTL> START listener02 What is the result of issuing these commands？（）

A.A listener named LISTENER is started.
B.A listener named LISTENER01 is started.
C.A listener named LISTENER02 is started.
D.The START command fails and no listener is started.

单项选择题

ExaminetheRMANcommand：SWITCHDATAFILE’ DISK3 user_data01.dbf’；Whichcommanddoyouneedtoissuebeforeyouissuetheabovecommand，sothatRMANfindsthefileintherestoredlocationof’DISK2 user_data01.dbf’？（）

A.RESTORE DATAFILE ’/DISK2/user_data01.dbf’
B.RESTORE DATAFILE ’/DISK3/user_data01.dbf’
C.SET NEWNAME FOR ’/DISK3/user_data01.dbf’ TO’/DISK2/user_data01.dbf’
D.SET NEWNAME FOR ’/DISK2/user_data01.dbf’ TO’/DISK3/user_data01.dbf’