You noticed that the index tablespace in your database requires a recovery. However， instead of performing a media recovery， you decided to re­create the indexes in a new tablespace. Which two options would you use to reduce the time it takes to re­create the indexes？（）

A.Data Pump
B.SQL scripts
C.SQL*Loader
D.Flashback database
E.Recovery Manager （RMAN） script

A.The index tablespace contains bitmap indexes.
B.The index tablespace contains more than one data file.
C.The index tablespace supports only complete recovery.
D.The index tablespace is not a dictionary­managed tablespace.
E.There is a dependency relationship between a table and its indexes.

A.import the database from the last export
B.restore all the members in the group from the last backup
C.drop the lost member from the database， and then add a new member to the group
D.restore all the database files from the backup， and then perform a complete recovery 
E.restore all the database files from the backup， and then perform an incomplete recovery