A customer is purchasing EMC AppSync software and additional VNX array capacity to create
application consistent replicas of their MS Exchange databases using Microsoft Volume Shadow
Copy Service. The Storage Administrator asked for a review of the command signals and data
flows during the backup process. What are they?

A.
VSS signals the VNX to initiate a copy

B.
AppSync signals the VNX to initiate a copy

C.
AppSync signals Exchange to freeze I/O

D.
VNX signals Exchange when copy is complete