Which three statements are true about bulk data loading capabilities in an X5 Database Machine environment?
A.
DBFS must use the DBFS_DG diskgroup for any DBFS store.
B.
DBFS may be used if Exadata-based shared storage is required to stage data before bulk loading into a
database.
C.
DBFS must be used to have a POSIX-compliant shared storage solution that is accessible from the
database servers on a Database Machine.
D.
DBFS must be used to bulk load data into a production database on the Database Machine.
E.
ACFS may be used if Exadata-based shared storage is required to stage data before bulk loading into a
database.
F.
ACFS must be used to have a POSIX –compliant shared storage solution that is accessible from the
database servers on a Database Machine.
G.
ACFS may use the DBFS_DG diskgroup to contain the ADVM volume file.
Explanation:
External tables on DBFS file-systems provide the probably the most high-performance way to bulk load data into your database.
Bulk Data Loading
Describe the various options for staging data to be bulk loading into Database Machine
Configure the Database File System (DBFS) feature for staging input data files
Use external tables based on input data files stored in DBFS to perform high-performance data loads