CompTIA Network+

Answer: C - MAC Filtering allows you to specify which devices are allowed to access your SOHO network.

Key Takeaway - MAC filtering allows you to specify the MAC addresses of all the devices allowed access to your network through the use of an ACL (Access Control List). A Firewall allows traffic out, but limited traffic in, while IP filtering is a more advanced concept that deals with IP packets. Turning off SSID broadcasting will limit traffic to only those who know the SSID, but this will not allow you to specify devices.