DRAG DROP
You administer three Microsoft SQL Server 2012 servers named ServerA, ServerB, and ServerC.
ServerA is the acting principal and ServerB is the mirror.
You need to add ServerC as a witness to the existing mirroring session between ServerA and ServerB.
You need to achieve this goal without delaying synchronization.
Which three actions should you perform in sequence? (To answer, move the appropriate actions from the list
of actions to the answer area and arrange them in the correct order.) 
Build List and Reorder:
Answer:
Explanation:
The Solution is in the left Hand window with the title “Ordered Title List”
is the order is correct?
Answer for me:
1º On Server C, Create an endpoint for use by the witness.
2º Ensure that same Windows login exists on each server and grant connect permissions to each server endpoint.
3º On Server A alter the Principal Database to use the endpoint on server C as a Witness.