ABC.com is growing rapidly and expanding to new geographies. The current headquarters is
located in London. They plan to create seven regional offices across France, Germany, and
Luxembourg that are between 800 and 2,000 km apart from each other. Each regional office has a
data center that will serve between four and six branch offices located between 30 and 200 km
away.
At the close of business each evening, the customer shuts down their primary application and
transmits new information to each regional office. The amount of new information sent from the
headquarters office each night will be between 0.5 and 1.5 GB. Later each night, an application at
the regional offices will read the data from the headquarters office and generate approximately 50
MB of new information appropriate to the branch offices.
What is the most cost-effective solution that you could recommend for the customer?

A.
Use OC-3 network links between London and all regional and branch locations. Use
MirrorView/S for data transfer to each office and create snapshots of the mirror for local
processing.

B.
Use OC-3 networks to transmit the same master copy of data from London to multiple regions
using Incremental SAN Copy. At the regional offices, create a snap of the data received and
transmit the changes to the branch offices using SAN Copy.

C.
UseMirrorView/S and T3 networks for all data transfers between regional offices and London.
Use MirrorView/A and T1 lines for transfers between regional and branch offices.

D.
UseMirrorView/A and T1 network links between London and the regional offices. Afterward, use
Incremental SAN Copy to distribute rate information to the branch offices using T1 network links.