单项选择题
A. After two days， the backup will be marked obsolete.
B. After two days， the backup will be deleted from the media.
C. If the RMAN repository has records of two or more recent backups of a file， then the older backup will be deleted from the media.
D. If the RMAN repository has records of two or more recent backups of a file， then the older backup will be marked obsolete.
单项选择题 YouadministeranOracleDatabase10gandathird-partydatabase.YouuseRecoveryManager（RMAN）toperformbackupandrecoveryoperations.YouhaveconfiguredarecoverycatalogtoactasanRMANrepository.TowhichofthefollowingdatabasescanyouNOTconnectusingtheRMANCONNECTcommand？（）
单项选择题 You issued the following RMAN command： RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON； What is NOT an impact of using the above command？（）
单项选择题 You issued the RMAN> SHOW ALL； command. The output of this command is as follows： After analyzing the output， which conclusion will you draw？（）