ABC.com plans to create two regional offices that are between 800 and 2,000 km away from their
main data center. Each regional office will have a data center that will serve four to six branch
offices between 30 and 50 km away.
At the close of business each evening the customer will shut down the application and transmit
changes to each regional office. The amount of new information sent from the head office each
night will vary from 0.5 and 1.5 GB. Later each night, an application at the regional offices will read
the data from the head office and generate approximately 50 MB of new rate information
appropriate for its branch offices.
What is the most cost-effective EMC solution?

A.
1. ConfigureSymmetrix arrays at all the main data centers and CLARiiONs at the regional and
branch offices.
2. Use OC-3 network links between the main data centers.
3. Use DS-3 between the regional and branch offices.
4. Use SRDF/DM for data transfer in each case.

B.
1. ConfigureCLARiiON arrays in each office.
2. Use MirrorView/A and T3 networks for all data transfers.

C.
1. ConfigureSymmetrix arrays in the head office and CLARiiONs in the regional offices.
2. Use OC-3 networks to transmit the same master copy of data from the head office to the
regional offices using Open Replicator.
3. At the regional offices, create a snap of the data received and transmit the changes to the
branch offices using SAN Copy.

D.
1. ConfigureSymmetrix arrays at the head office and regional offices.
2. Configure CLARiiONs at the branch offices.
3. Use SRDF/DM and T1 network links between the head office and regional offices.
4. Use Open Replicator incremental offline push to distribute rate information to the branch offices
using T1 network links.