（单选题）
You observe that the senior database administrator always uses the following command when connecting to Recovery Manager （RMAN）， and then starts executing commands to backup the database files： $ rman target / What would be the effect of this command？（）
ARMAN would use the current operating system location to place the backup.
BRMAN would use the control file of the target database to maintain the backup.
CRMAN would use the recovery catalog of the target database to maintain the backup.
DRMAN would use the control file of the target database to maintain the backup metadata.
ERMAN would use the recovery catalog of the target database to maintain the backup metadata.
正确答案
答案解析
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