单选题If you create your database using Oracle Managed Files （OMF）， what is true？（）A You must use Oracle predefined names to identify raw partitions that will hold OMF structures. B You must define directories for two online redo log groups and three copies
题目
单选题
If you create your database using Oracle Managed Files （OMF）， what is true？（）
A
You must use Oracle predefined names to identify raw partitions that will hold OMF structures.
B
You must define directories for two online redo log groups and three copies of the control file.
C
If your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically.
D
You must use only OMF data files when adding new tablespaces or data files to your database in the future.