单选题A customer is considering replacement of twenty older 4U and 6U rack-based servers with one IBM x366 Server running VMWare ESX attached to one DS4300. Which of the following represents a reduction in Total Cost of Ownership （TCO） for the customer？（）A
题目
单选题
A customer is considering replacement of twenty older 4U and 6U rack-based servers with one IBM x366 Server running VMWare ESX attached to one DS4300. Which of the following represents a reduction in Total Cost of Ownership （TCO） for the customer？（）
A
Reduction in operating system software licensing and application costs
B
Reduction in floor space and hardware cost saving
C
VMWare is licensed per system so no extra charge for SMP support
D
No single point of failure， reducing downtime