Which three statements are true regarding ACFS snapshot…

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

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.

Explanation:
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.

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).