Which two statements are true about the use of DBFS, ACFS, and external file systems and components in an X5 Database Machine environment? 

Answer options:

A. ACFS uses storage in a database on the database machine
B. DBFS supports file system snapshots.
C. ACFS supports file system snapshots.
D. Storage Area Network (SAN) –based file systems may be accessed directly from the storage servers in a database machine.
E. Oracle Sun ZFS Storage Appliance- based files are not automatically protected by Data Guard.

BC

DBFS SecureFiles Store Capabilities include support for file system snapshots. Oracle ACFS includes advanced features such as file system snapshot. References: http://www.oracle.com/technetwork/ru/database/dbfs-sf-oow2009-v2-160969.pdf http://www.oracle.com/technetwork/database/database-technologies/cloud-storage/benefits-of-oracle-acfs-2379064.pdf