Which of the following options is a functionality or tool that disallows access to a wireless network based on the layer 2 address of the client device?
WPA2
Split tunnel VPN
ACL
MAC address filtering
Layer 2 addresses (also called physical address) are MAC addresses. Using MAC filtering you can disallow any devices that are not explicitly granted access. While this can help increase security, it is not fool proof and advanced attackers can easily spoof the MAC address to gain access. MAC filtering alone is not sufficient to protect a network.
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