单项选择题
You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To accomplish the backup， you issued the following RMAN command：
RMAN>BACKUP SECTION SIZE 300M TABLESPACE users；
What configuration should be effected to accomplish faster and optimized backups by using the above command？（）
A. The SBT channel must be configured， with the default parallelism setting for the SBT device set to 1
B. The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0
C. The SBT channel must be configured， with the parallelism setting for the SBT device set to 3
D. The SBT channel must be configured， with the MAXPIECESIZE set to 300 MB
相关考题
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多项选择题
YouperformedtheRMANdatabasebackupwiththeKEEPoption.Whichtwostatementsaretrueregardingthisbackup？（）
A. The backup contains data files， the server parameter file，and the control file even if the control file autobackup is disabled.
B. The KEEP option overrides the configured retention policy.
C. The backup contains only data files and archived redo log files.
D. The KEEP option is an attribute of an individual backup piece. -
单项选择题
You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA， a big file tablespace of size 100 TB on tape drive， but you have tapedrives of only 10 GB each. Which method would accomplish the task quickly and efficiently？（）
A. parallel image copy backup
B. backup with MAXPIECESIZE configured for the channel
C. parallel backup with MAXPIECESIZE configured for the channe
D. intrafile parallel backup -
多项选择题
Whicharetheprerequisitesforperformingflashbacktransactionsonyourdatabase？（）
A. Undo retention guarantee for the database must be configured.
B. Supplemental log must be enabled for the primary key.
C. Supplemental log must be enabled.
D. Execute permission on the DBMS_FLASHBACK package must be granted to the user.
