An engineer is gathering information for a wireless survey of a hospital. What three pieces of information must be collected for an active survey to assess the outcome best suited for the facility?

A.	presence of microwave ovens
B.	number of patients that are at the facility
C.	utilization of Location Services or voice applications
D.	floor plans of adjacent facilities
E.	use of wireless for secure records
F.	spectrum analysis to locate all the computer work stations
G.	existing Network Switch types and model numbers
H.	type of devices present on the new wireless network