Security+ Question of the Week: Wireless MAC Filtering

The correct answer is D.

When the administrator crafts a list of valid and approved MAC addresses, all devices not on this list will be ignored by the wireless base station. However, if an attacker is able to duplicate or hijack a valid MAC address from a legitimate client, then the spoofing of this physical address will bypass the wireless MAC filter. Setting the network information center (NIC) to promiscuous mode will not bypass wireless MAC filtering, as that is used to perform network sniffing. Statically assigning an IP address will avoid Dynamic Host Configuration Protocol (DHCP) communications or limitations, but will not bypass wireless MAC filtering. Running a dictionary attack may assist in guessing or cracking a user’s password, but it will not bypass wireless MAC filtering.