多项选择题
A.Back up the Flash Recovery Area.
B.Decrease the retention time for the database backup and flashback log files.
C.Manually delete all the archived log files from the Flash Recovery Area by using operating system （OS）commands.
D.Manually delete all the expired backup sets from the Flash Recovery Area by using operating system（OS） commands.
单项选择题 View the Exhibit to examine the output for the CROSSCHECK BACKUP command. Which statement is true about the output of the command（）
单项选择题 You want to configure and schedule offline database backups to run automatically. Which tool or utilitywould you use to achieve this（）
多项选择题 WhichtwofilesinthedatabasecanbeconfiguredforautomaticbackupsbyusingtheautobackupfeatureinRecoveryManager（RMAN）（）