Which three statements are true about the Global Enqueu…

Which three statements are true about the Global Enqueue Service and Global Enqueue Service (GES)
Resources in Oracle 12c RAC?

A.
The mastering instance for a GES resource is never the same as the instance that owns the enqueue in
exclusive mode.

B.
The LMD0 runs only on the instance that masters all GES resources.

C.
When a GES resource is dequeued, converters if any exist for that resource, are processed before any
waiter for that resource.

D.
The LMD0 process on the requesting instance communicates with the LMD0 process on the mastering
instance if they are not the same instance.

E.
The mastering instance for a GES resource is never the same as the instance that owns an enqueue in
shared mode.

F.
An LMD0 process runs on all instances.

G.
The foreground process on the requesting instance communicates with the LMD0 process on the mastering
instance if they are not the same instance.