When is a 64-bit Windows Operating System required for the installation of vCenter Server?
Answer: When deploying vSphere 4.1 or later
Explanation:
Beginning with vSphere 4.1, a 64-bit version of Windows is required for vCenter Server installation.
When deploying vSphere 4.1 or later
Beginning with vSphere 4.1, a 64-bit version of Windows is required for vCenter Server installation
I agree with the answer.