An organization currently writes backups to an EMC Data Domain system and then creates
encrypted copies of their backups on tapes. These tapes are then shipped to a third-party offsite
vault.
They are now planning to deploy a second Data Domain system in a hosted disaster recovery site
as a replication target to replace the use of the offsite tapes. The two sites are connected through
an encrypted WAN link.
Where should encryption be applied on the Data Domain systems to ensure a similar level of data
security as achieved by their current process?

A.
Encrypt the replication context

B.
Encrypt the data at rest

C.
Encrypt both the data at rest and the replication context

D.
None. The WAN link between the sites is already encrypted.