Jacob wants to set up extra security on his wireless network; he currently uses wpa2. he wants to allow only his devices to connect to the network and reject devices that he does not own. what extra wireless security should jacob employ in on his wireless router? a. wps
b. port forwarding
c. disable ssid broadcasting
d. mac filtering

D) MAC filtering

Explanation:

MAC(Media access layer) filtering is the technique that maintains the authorized assess control of devices over the network.This helps to maintain the security of Wi-fi network.

Only the permitted device can be present in the Wi-fi list and other non-authorized devices gets denied from getting connected.According to the question, Jacob should use MAC filtering for providing extra security to Wi-Fi so that non-permitted devices do not connect with the network.Other options are incorrect because port forwarding is mapping of ports. WPS(Wi-Fi Protected Setup) is used for rapid connection between router and wireless devices. SSID broadcasting  disabling helps securing network along with router.Thus, the correct option is option(D).