E20-500 Question #176: Real Exam Question with Answer & Explanation

A customer needs to back up data from a remote office. They also want to centralize backups. The link between the remote office and the primary data center is slow. The customer would like to implement an EMC Avamar solution. After sizing the data, it is determined that the remote office would consume no more than 4 TB of Avamar storage. The customer is concerned that restores across the slow link might take too long. The customer would like to maintain local backups. However, due to regulatory requirements, the backups must be replicated off-site to the central data center. You recommend an Avamar RAIN configuration for the central data center. What is the best, most cost effective solution for the remote site?