Which of the following has no effect on the amount of physical memory resources used for virtualization overhead (Choose Two)?

Answer:
Increasing the memory shares for the virtual machine.
Installing a 64-bit versus 32-bit operating system.

Explanation:
Increasing the number of virtual CPUs in the virtual machine will increase the overhead for the virtual machine. Adjusting memory share values affects priority access to resources when contention exists, but does not increase or decrease a virtual machine’s overhead. Operating System architecture affected memory overhead in earlier generations of ESX, but does not impact overhead in vSphere 4.x