header bg

Question:

What physical device or software program is used to limit which TCP and UDP ports a network device can use?

A Firewall
Explaination

A firewall is software that restricts network access. In its most basic form, a firewall will block TCP and UDP ports based on their number or protocol, but many current firewalls contain complicated algorithms to prevent odd traffic, identify potential network assaults, and monitor or block traffic depending on a variety of other variables.