Refer to the exhibit.

A customer was running a database application whose data and logs were distributed across
Symmetrix arrays S1 and S2. The data was being remotely replicated on Symmetrix arrays T1 and
T2 using synchronous SRDF. A network outage caused the links between S1 and T1 to fail, while
the application continued to run and data continued to be replicated from S2 to T2. A few hours
later a disaster caused the entire source site to fail. When the customer tried to start up the

applications at the remote site, the data on S2 and T2 were found to be unusable. Which SRDF
technology would have prevented the problem?

A.
SRDF Consistency Groups

B.
Multi-session consistency

C.
SRDF Data Mobility

D.
Asynchronous SRDF