单选题You executed the following command in Recovery Manager （RMAN）： RMAN REPORT NEED BACKUP days 3； What is the output of this command？（）A a list of files that require a backup within three daysB a list of files requiring more than 3 days of archive logs to applyC a list of files that RMAN recommends be backed up only once in every three days，based on low volatilityD a list of files for which a backup has already been performed in the last three days and which is required to be backed up again based on the high number of transactions performed on them
单选题
You executed the following command in Recovery Manager （RMAN）： RMAN> REPORT NEED BACKUP days 3； What is the output of this command？（）
A
a list of files that require a backup within three days
B
a list of files requiring more than 3 days of archive logs to apply
C
a list of files that RMAN recommends be backed up only once in every three days，based on low volatility
D
a list of files for which a backup has already been performed in the last three days and which is required to be backed up again based on the high number of transactions performed on them
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单选题The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database： RMAN REPORT OBSOLETE; What would you see in the output？（）Aa list of all the expired backups and copiesBa list of all those files that have been deleted in the last two daysCa list of all those files that have been recovered within the last two daysDa list of backups and copies that are outside the range covered by the current retention policy
单选题You executed the following command in the Recovery Manager (RMAN): RMAN REPORT NEED BACKUP days 3; What is the output of this command?（）AA list of files that require a backup within 3 daysBA list of files requiring more than 3 days of archivelogs to applyCA list of files that RMAN recommends be backed up only once in every three days, based on low volatilityDA list of files for which a backup as already been performed in the last three days and which is required to be backed up again based on the high number of transactions performed on them
单选题What is the output of this command?（）AA list of files that require a backup within 3 daysBA list of files requiring more than 3 days of archivelogs to applyCA list of files that RMAN recommends be backed up only once in every three days, based on low volatilityDA list of files for which a backup as already been performed in the last three days and which is required to be backed up again based on the high number of transactions performed on them