单项选择题
Which RMAN backup command is used to create the block-change tracking file？（）
A. alter database create block change tracking file
B. alter database enable block change file
C. alter database enable block change tracking using file ，/ora01/opt/ block_change_tracking.fil
D. alter system enable block change tracking using file ’/ora01/opt/block_ change_tracking.fil’
E. alter system block change tracking on
相关考题
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单项选择题
WhichofthefollowingRMANstructurescandatafromadatafilespan？（）
A. RMAN backup-set pieces spanning backup sets
B. RMAN backup-set pieces within a given backup set
C. RMAN backups
D. RMAN channels
E. None of the above -
多项选择题
WhichofthefollowingfilescannotbebackedupbyRMAN？（）
A. Database datafiles
B. Control files
C. Online redo logs
D. Database pfiles
E. Archived redo logs -
单项选择题
Your database has a backup that was taken yesterday （Tuesday） between 13：00 and 15：00 hours. This is the only backup you have. You have lost all the archived redo logs generatedsince the previous Monday， but you have archived redo logs available from the previous Sunday and earlier. You now need to restore your backup due to database loss. To which point can you restore your database？（）
A. 13：00 on Tuesday.
B. 15：00 on Tuesday.
C. Up until the last available archived redo log on Sunday.
D. To any point； all the redo should still be available in the online redo logs.
E. The database is not recoverable.
