In order to prevent unwanted network access, John should configure a media access control (MAC) protocol to provide security and allow (permit) network traffic only from specific addresses.
The physical address of the network interface card (NIC) for a networking device is referred to as media access control (MAC) address.
Generally, this physical address is permanently configured on all networking devices and it is unique to each device.
This ultimately implies that, a media access control (MAC) address can be used to uniquely recognize and allow (permit) traffic from a network device such as a PC that is operating on a network.
In conclusion, John should configure a media access control (MAC) protocol to provide security and allow (permit) network traffic only from specific addresses.
Read more: https://brainly.com/question/24112967
