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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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出自：Oracle认证

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