Jane, a small business owner, would like to implement wireless networking for her business but wants to be sure the wireless is ONLY accessible from within her business premises. Which of the following would BEST accomplish this?
A. Disabling SSID broadcast to ensure that only employees know the SSID
B. Using unidirectional antennas and reducing radio power levels appropriately
C. Assigning DHCP addresses that expire after a shorter period of time
D. Using omni-directional antennas and reducing radio power levels appropriately