You have a server named Server1 that runs Windows Server 2012 R2.
You have a subscription to Windows Azure.
You need to register the Microsoft Azure Backup Agent on Server1.
What should you do first?

A.
Install the Microsoft System Center 2012 Data Protection Manager (DPM) agent.

B.
Create a backup vault.

C.
Create Site Recovery vault.

D.
Configure a passphrase for the Azure Backup Agent.

Explanation:
To back up files and data from your Windows Server to Azure, you must create a backup vault in the
geographic region where you want to store the data. The main steps include:
* the creation of the vault you will use to store backups
* downloading a vault credential
* the installation of a backup agent
Configure Azure Backup to quickly and easily back up Windows Server
https://azure.microsoft.com/sv-se/documentation/articles/backup-configure-vault/