Which three statements are true regarding ACFS snapshots in Oracle 12c ASM? 

Answer options:

A. They are contained in a directory on the same volume as their parent file system.
B. All ACFS snapshot operations for all filesystem are serialized clusterwide.
C. You can create a snapshot from an existing snapshot.
D. They can be administered using ASMCMD.E. They can only be accessed when the file system is mounted.
F. They are always point-in-time copies of the parent file system.

BCE

All Oracle ACFS snapshot operations are serialized clusterwide in the kernel. You chose to create a snapshot image on an existing snapshot group, select a snapshot group from the existing snapshot group table (make sure you select a snapshot group that has not reached its maximum limit of snapshot images). Before you can access the files on a file system, you need to mount the file system. References: https://docs.oracle.com/database/121/OSTMG/GUID-5A3EF695-A795-4FEA-8BE2-AF657BD2238C.htm#OSTMG33000 http://mysupport.netapp.com/NOW/public/eseries/amw/index.html#page/SANtricity_v11.20_Array_Management_Window_Help/create_PIT_image.html (Creating a Snapshot image 3rd point, 1st line). https://docs.oracle.com/cd/E19455-01/805-7228/6j6q7ueup/index.html (1st paragraph, 1st line).