A storage administrator is required to test a new version of an application loaded on a secondary host. The
administrator must use existing data contained on a LUN provisioned from Unity to a primary host.
Which solution will meet the requirement and provide space efficiency?

A.
Create a snapshot of the LUN
Configure LUN access for the secondary host
Attach the snapshot to the secondary host

B.
Create a snapshot of the LUN
Configure snapshot access to the LUN for the secondary host
Attach the snapshot to the secondary host

C.
Create a Synchronous Replication session for the LUN
Configure access to the replica LUN for the secondary host
Attach the secondary host

D.
Create an Asynchronous Replication on session for the LUN
Configure access to the replica LUN for the secondary host
Attach the secondary host

Explanation:
Attaching a snapshot is only applicable for block snapshots, and makes the snapshot available for host IO. A
host must have Snapshot access or LUN and Snapshot access configured in order to access the snapshot.
When a snapshot is attached, Unisphere provides the option to create a copy of the snapshot in case the
administrator wants to preserve the current snapshot view for future use.
https://www.emc.com/collateral/white-papers/h15089-emc-unity-snapshots.pdf (page 9)