A new EMC Avamar customer is concerned with data security since all backup data is stored on
disk. To minimize the customer’s concerns, you have recommended the encryption-at-rest feature.
What is a consideration when using this feature?

A.
Must be enabled at Avamar server installation time and has an impact on server resources

B.
Specified at the time of each backup operation or in a group definition

C.
Must be enabled when each client is installed and cannot be changed

D.
Uses an Avamar proprietary encryption method which requires an encryption key