THE N10-005 EXAM HAS BEEN RETIRED. See the latest Network+ videos at [ Ссылка ]
Today's security technologies use different techniques for allowing traffic flows through the network. In this video, you'll learn about firewall-based stateful inspection and how to perform simple packet filtering in other network devices.
![](https://i.ytimg.com/vi/9wRgvyLZOKc/maxresdefault.jpg)