What happens in an Exadata Database Machine when the DUPLICATE sub-clause of the INMEMORY
attribute is specified?
A.
The DUPLICATE sub-clause enables parallel execution NUMA support.
B.
Each In-Memory Compression Unit in the IM column store will have a mirrored copy placed on another
node in the RAC cluster.
C.
The command allows the current instance to exceed DRAM limits and expand across memory, flash, and
disk.
D.
The command creates an in-memory snapshot for write_only access.
E.
The In-Memory Compression Unit will have a mirrored copy placed on every other node in the RAC cluster.
Explanation:
http://www.oracle.com/technetwork/database/in-memory/learnmore/twp-dbim-exadata-2556211.pdf
(page 3)
Right.
ok
looks like E, B is for duplicate all, as it say each IMCU not particular one.