What can we conclude from the conversation？A．The woman thinks Mr. Saunders is asking for m

igure a redundancy-based retention policy:CONFIGURE RETENTION POLICY TO REDUNDANCY 3;Which statement is true？（）

A. The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled

B. Backup optimization is performed, but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up

C. Backup optimization is permanently disabled

D. Backup optimization is temporarily disabled because a redundancy-based retention policy is specified

.- The recovery window is set to 7 days in RMAN.- The most recent backup to disk for the TOOLS tablespace was taken on November 3, 2007.- The TOOLS tablespace is read-only since November 4, 2007.On November 23, 2007, you issue the RMAN command to back up the database to disk.Which statement is true regarding the backup of the TOOLS tablespace？（）

A. The RMAN backup fails because the TOOLS tablespace is read-only

B. The RMAN skips the backup of the tablespace because backup optimization is enabled

C. The RMAN makes backup because optimization can be enabled only for backups to disk

D. The RMAN makes the backup because no backup of the tablespace exists within the seven day window

A. The RMAN backup fails because the TOOLS tablespace is read-only

B. The RMAN skips the backup of the tablespace because backup optimization is enabled

C. The RMAN makes backup because optimization can be enabled only for backups to disk

D. The RMAN makes the backup because no backup of the tablespace exists within the seven day window

ind that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough.What could be a solution to make tape streaming happen during the backup？（）

A. Configure backup optimization

B. Configure the channel to increase MAXOPENFILES

C. Configure the channel to increase the capacity with the RATE parameter

D. Configure the channel to adjust the tape buffer size with the BLKSIZE option

You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN).To accomplish the backup, you issued the following RMAN command:RMAN> BACKUP SECTION SIZE 300M TABLESPACE users;Which two statements are true about the execution of the above command？ （）(Choose two.)

A. The backup piece size will be limited to 300 MB

B. The RMAN uses multiplexing to perform backup

C. The operation is accomplished using the default channel available

D. The RMAN parallelizes the backup although the parallelism is not set for a channel

when backup commands are running in server sessions:What could have helped you to correlate server sessions with channels？（）

A. Implement RMAN multiplexing

B. Set the DEBUG ON in the RMAN script

C. Specify the command ID in the RMAN script

D. Use a tag with the RMAN BACKUP command

command runs in an RMAN sessions:RMAN> BACKUP DATABASE FILESPERSET 2;The database has seven data files.Why is the %_COMPLETE refreshed to 13.59 in the third output afterreaching 88.77？（）

A. Because the progress is reported for each data file

B. Because the progress is reported for each backup set

C. Because other RMAN sessions have issued the same BACKUP command

D. Because new data files have been added to the database while the RMAN backup is in progress

EVER option. After some days, you want to change the status of the database backup and you issued the following command:RMAN>CHANGE BACKUPSET 231 NOKEEP;What is the implication of this command？（）

A. The backup is deleted.

B. The backup is marked unavailable.

C. The backup overrides the backup retention policy.

D. the backup becomes eligible for deletion according to the existing retention policy