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多項選擇題

Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt:  
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;  
After executing this command, in which of the following cases will RMAN make an auto-backup of the control file? ()

A. when you change the name of a datafile
B. when you drop a table from the database
C. when you take an export of the database
D. when you back up the database using OS utilities
E. when you issue an ALTER SYSTEM SWITCH LOGFILE statement
F. when you issue a BACKUP command from inside the RMAN run block

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