A company has Hyper-V host servers that run Windows Server 2012. The company also has virtual machines that run Windows Server 2008 R2 or Windows Server 2012.
You upgrade the Hyper-V host servers to Windows Server 2012 R2.
You need to ensure that all virtual machines can PXE boot by using a standard network adapter.
What should you do?
A. Create Generation 2 virtual machines.
B. Upgrade all existing virtual machines to Windows Server 2012 R2.
C. Upgrade the existing virtual machines that run Windows Server 2008 R2 to Windows Server 2012 R2.
D. Create Generation 1 virtual machines.
