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單項選擇題

ou are implementing control file multiplexing. Which of the following choices identifies the method you can use in order to generate the control file copies that Oracle will maintain?（）

A.Issue ALTER DATABASE BACKUP CONTROLFILE TO filename
B.Make a copy of the control file with the database shut down
C.Issue ALTER DATABASE BACKUP CONTROLFILE TO trace
D.Make a copy of the control file with the database still running

單項選擇題

You are identifying dictionary objects in the Oracle database. Which of the following is a view in the data dictionary?（）

A.V$DATABASE
B.DBA_TABLES
C.SYSAUD$
D.EMP