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

Explanation:
MAC filtering allows traffic to be permitted or denied based on a device’s MAC address. We make a MAC
filtering which contains the MAC addresses of all approved devices that need to access the wireless network.
This ensures that only approved devices are given access to the network.