An HADR environment has two standby databases – one principal and one auxiliary. What is the only mode
that can be used to transfer data to the auxiliary standby?

A.
SYNC

B.
ASYNC

C.
NEARSYNC

D.
SUPERASYNC

Explanation:
https://www.ibm.com/support/knowledgecenter/SSEPGG_11.1.0/com.ibm.db2.luw.admin.ha.doc/
doc/c0059994.html