You have an exchange server 2016 organization. The organization contains a Mailbox server named EX01. EX01 contains a mailbox database named DB01.
The volume that contains DB01 fails.
You need to perform a dial-tone recovery of the database.
What should you create first?
A. a new Recovery Storage Group
B. a new mailbox database
C. a mailbox move request
D. a mailbox restore request
E. a lagged database copy
