Q9
Single choice
Refer to the Exhibit:

The customer wants to implement an HP StoreOnce solution for the environment shown.
You have been given the following information:
- Each branch office has approximately 100 GB of data.
- Philadelphia has approximately 2 TB data.
- Pittsburg has approximately 1 TB data.
- All backup data will be replicated back to the data center in Pittsburg.
- Costs should be kept to a minimum but allow for the possibility of adding three more sites.
When designing the solution, which factor needs to be considered?