A small business utilizes a SOHO router and wishes to secure its existing wireless infrastructure. The business has fewer than ten devices, which are a mixture of old and new machines. Due to the varying ages of the machines, the latest wireless encryption methods may not be supported on all devices.
Which of the following would be the MOST cost-effective method to add a layer of security while allowing all machines to connect?
A . WPA2
B . EAP-FAST
C . MAC filtering
D . 802.1X
Answer: A