关于后浇带的设置和处理，下列说法正确的是()。

A.TheLOBvaluesareautomaticallycompressed.

B.TheLOBvaluesarecachedbydefaultinthebuffercache.

C.TheLOBvaluesareautomaticallystoredinencryptedmode.

D.AllLOBdatathatisidenticalintwoormorerowsinaLOBcolumnsharethesamedatablocks.

A.A

B.B

C.C

D.D

YPE sbt PARALLELISM 1;RMAN> CONFIGURE DEFAULT DEVICE TYPE TO sbt;RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE sbt TO 2;RMAN> CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE sbt TO 2;RMAN> CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2;Then you issued the following command to take the backup:RMAN> BACKUP DATABASE PLUS ARCHIVELOG;Which statement is true about the execution of the above command?（）

A. The backup will terminate because the FORMAT clause was not configured for the channel

B. It backs up two copies of data files to tape and disk, and two copies of archived log file on tape

C. It backs up the data files and archived log files to disk, making two copies of each data file and archived log file

D. It backs up the data files and archived log files to tape, making two copies of each data file and archived log file

A.Undotablespace

B.USERStablespace

C.SYSAUXtablespace

D.SYSTEMtablespace

E.Temporarytablespace

A. Flash recovery area must be defined

B. Undo retention guarantee must be enabled.

C. Database must be running in archivelog mode.

D. Automatic undo management must be enabled.

E. The tablespace in which the Flashback Data Archive is created must have automatic segment space Management (ASSM).

03 and 115. The UPDATE statement you specify should update the rows with the values specified below:Which UPDATE statement meets the requirements?（）

A.

B.

C.

D.

E.