You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers in the ABC.com domain， including domain controllers， have Windows Server 2012 R2 installed.The ABC.com network has a server named ABC_SR07 that hosts two virtual machines. You use Windows Server Backup to configure scheduled backups of ABC_SR07. 
How would you ensure that all virtual machines will be saved before the backups begin？（）

You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com.ABC.com has a domain controller， named ABC-DC01， which has Windows Server 2012 R2 
installed. Another ABC.com domain controller， named ABC-DC02， has Windows Server 2008 R2 installed.You have deployed a server， named ABC-SR15， on ABC.com’s perimeter network. ABC-SR15 is running a Server Core Installation of Windows Server 2012 R2.You have been instructed to make sure that ABC-SR15 is part of the ABC.com domain. 
Which of the following actions should you take？（）