A customer is experiencing rapid data growth and requires more backup data to be available online. Which
technology could benefit the customer?

A.
deduplication

B.
wide striping

C.
snapshots

D.
tiering

Explanation:
Data deduplication is a technique for reducing the amount of storage space an organization needs to save its
data. In most organizations, the storage systems contain duplicate copies of many pieces of data.
Deduplication eliminates these extra copies by saving just one copy of the data and replacing the other copieswith pointers that lead back to the original copy. Companies frequently use deduplication in backup and disaster
recovery applications, but it can be used to free up space in primary storage as well.
http://www.webopedia.com/TERM/D/data_deduplication.html