A wireless network technician for a local retail store is installing encrypted access points within the
store for real-time inventory verification, as well as remote price checking capabilities, while
employees are away from the registers. The store is in a fully occupied strip mall that has multiple
neighbors allowing guest access to the wireless networks. There are a finite known number of
approved handheld devices needing to access the store’s wireless network. Which of the following is
the BEST security method to implement on the access points?

A.
Port forwarding

B.
MAC filtering

C.
TLS/TTLS

D.
IP ACL