You have an Exchange Server 2010 organization that contains a single Mailbox server. The
Mailbox server contains two mailbox databases named DB1 and DB2.
You need to restore a backup of DB1.
Users must be able to connect to their mailboxes on DB1 during the restore process.
What should you create first?
A.
a database availability group (DAG)
B.
a Client Access server array
C.
a Recovery Mailbox database
D.
a recovery storage group