Which description of OceanStor V3 remote file system copy is correct? (Multiple choice)

Which description of OceanStor V3 remote file system copy is correct? (Multiple choice)
A . using the object-based layer way to get the data replication.
B . using the ROW-based snapshot periodic ratio way to get the data replication.
C . can trigger or trigger system timing synchronization manually by the user.
D . support the terminal file system Quota information copy to the slave side and slave side is no need to set allocation Quota.

Answer: ABC