Security methods such as private encryption, VLANs and firewalls comes under __________ subject area.

A)  CostDATACENTER = 1nΣ(UnitCostDATACENTER / (Revenue –(CostDATACENTER/Utilization))SYSTEMn
B)  CostDATACENTER = 1nΣ(UnitCostDATACENTER x (Revenue –(CostDATACENTER/Utilization))SYSTEMn
C)  CostDATACENTER = 1nΣ(UnitCostDATACENTER x (Revenue +(CostDATACENTER/Utilization))SYSTEMn
D)  All of the Above

Correct Answer :   CostDATACENTER = 1nΣ(UnitCostDATACENTER x (Revenue –(CostDATACENTER/Utilization))SYSTEMn


Explanation : Sum includes terms for System 1, System 2, System 3, and so on.