In an attempt to secure his wireless network, Bob turns off broadcasting of the SSID. He concludes that since his access points require the client computer to have the proper SSID, it would prevent others from connecting to the wireless network. Unfortunately unauthorized users are still able to connect to the wireless network.

Why do you think this is possible?

A.
Bob forgot to turn off DHCP.

B.
All access points are shipped with a default SSID.

C.
The SSID is still sent inside both client and AP packets.

D.
Bob’s solution only works in ad-hoc mode.

Explanation:
All access points are shipped with a default SSID unique to that manufacturer, for example 3com uses the default ssid comcomcom.