Which of the suggested actions would prevent unauthorized users from connecting their computer
to a Certkiller .com’s WLAN?

A.
enable DHCP on the wireless subnet

B.
enable the SSID broadcast in the access point

C.
enable MAC address filtering

D.
enable DNS on the wireless subnet

Explanation:
Only the MAC address filtering would help in protecting the wireless network. All other suggestions
would actually help unauthorized users to gain access.