柴葛解肌汤的组成药物有( )

A. The backup as copy can only be taken to disk

B. The backup as copy can only be taken to tape

C. Backup can be performed only when the instance is shutdown

D. Backup will constitute all used and unused blocks in the database

A. The backup as copy can only be taken to disk

B. The backup as copy can only be taken to tape

C. Backup can be performed only when the instance is shutdown

D. Backup will constitute all used and unused blocks in the database

A. The KEEP option overrides the configured retention policy

B. The KEEP option is an attribute of an individual backup piece

C. The backup contains only data files and archived redo log files

D. The backup contains data files, the server parameter file and the control file even if the control file auto backup is disabled

In your database, the flash recovery area (FRA) is configured as the default for RMAN backups. You executed the following commands to configure the settings in RMAN:RMAN> CONFIGURE DEVICE TYPE disk PARALLELISM 2 BACKUP TYPE TO BACKUPSET;RMAN> CONFIGURE CHANNEL 1 DEVICE TYPE disk FORMAT ‘/home/oracle/disk1/%U‘;RMAN> CONFIGURE CHANNEL 2 DEVICE TYPE disk FORMAT ‘/home/oracle/disk2/%U‘;You issue the following RMAN command to backup the database:RMAN> RUN2> {3> ALLOCATE CHANNEL ch1 DEVICE TYPE disk;4> BACKUP DATABASE;5> }Which statement is true about the outcome？（）

A. Only one channel is allocated and the backup is created in the flash recovery area

B. Only one channel is allocated and the backup is created in the destination specified for channel 1

C. Two channels are allocated and backup sets are created in the destinations specified for channels 1 and 2

D. Three channels are allocated and backup sets are created in the destinations specified for channels 1, 2, and FRA

files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used？（）

A.savevg

B.tar

C.cpio

D.mksysb

ckup available for the target database was taken two days ago. Log files switches have occurred in last two days. The target database is duplicated on the same host, using the Recovery Manager (RMAN) duplicate command as follows:Which statement is true about the duplicate database in this scenario？（）

A. It contains data till the last backup

B. It contains all data from target database until the current time

C. It contains all data from only the committed transactions in the target database

D. It contains all data except that which is used by the transactions in the current online redo file of target database

A. Backup compression should be enabled

B. Parallelism for the channel should be set to 2

C. All the files must be backed up as backup sets

D. The backup may be stored either on disk or on media with media manager

A. Backup compression should be enabled

B. Parallelism for the channel should be set to 2

C. All the files must be backed up as backup sets

D. The backup may be stored either on disk or on media with media manager

e all data was backed up？(72 )

A.Incremental backup

B.Full backup

C.Partial backup

D.Differential backup