Your company has an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. All client computers run Windows 7. Your environment includes Microsoft Enterprise Desktop Virtualization (MED-V).
You are preparing to update a MED-V Workspace that is used by 1000 client computers.
You need to minimize the network impact of updating the Workspace.
What are two possible ways to achieve this goal?（）

Your company has an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. All client computers run Windows 7.
Your environment includes Microsoft Enterprise Desktop Virtualization (MED-V). You use MED-V to support temporary test environments.
You need to ensure that the disk space used by obsolete Workspaces is automatically minimized.
Which two actions should you perform?（）