Martin Wants to Maintain an Exact Copy of the Data

Multiple Choice

Martin wants to maintain an exact copy of the data from one of the data storage locations in a separate location for disaster recovery purposes. The copy of the data will not be actively used unless the systems have to failover to the copy. Which of the following describes the type of redundancy he is wanting to implement?

A) Duplexing
B) Mirroring
C) Snapshot
D) Tokenization