A network technician is setting up a wireless access point that would only allow a certain laptop to
be able to access the WAP. By using ACL, which of the following would be filtered to ensure only
the authorized laptop can access the WAP?

A.
NetBIOS name filtering

B.
IP address filtering

C.
MAC address filtering

D.
Computer name filtering

Explanation:

MAC Filtering (or EUI filtering, or layer 2 address filtering) refers to a security access control
method whereby the 48-bit address assigned to each network card is used to determine access to
the network.

MAC addresses are uniquely assigned to each card, so using MAC filtering on a network permits
and denies network access to specific devices through the use of blacklists and whitelists. While
the restriction of network access through the use of lists is straightforward, an individual person is
not identified by a MAC address, rather a device only, so an authorized person will need to have a
whitelist entry for each device that he or she would use to access the network.