ou 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.The command produces an error because the retention time cannot be reduced. 
B.All historical data is retained but the subsequent flashback data archives are maintained for only three years. 
C.All historical data is purged and the new flashback data archives are maintained for three years. 
D.All historical data older than three years is purged from the flashback archive FLA1. 

A.The backup fails because one of the archived redo log files is missing. 
B.The backup succeeds but it would be without the missing archived log. 
C.During backup, you are prompted for the alternative destination for the missing archived redo log file. 
D.The backup succeeds because it fails over to one of the alternative archived redo log destinations. 

A.SQL statements that are part of the AWR baseline only 
B.SQL statements based on the AWR top SQL identification
C.SQL statements that are part of the available SQL Tuning Set (STS) only 
D.SQL statements that are available in the cursor cache and executed by a user other than SYS