Code.org offers a video on the same topic. Code.org's video gets into a bit more of the history of the development of the Internet. I also showed this video to my students, but I didn't find it nearly as effective as the PowerCert video.
Applications for Education
If you have never built a website from scratch without the use of a service like Weebly or Google Sites, you may not have ever thought about the role of IP addresses and the domain name system in getting a website online. These videos can help students understand how that process happens and how DNS makes it easy to navigate the web today.
If you have never built a website from scratch without the use of a service like Weebly or Google Sites, you may not have ever thought about the role of IP addresses and the domain name system in getting a website online. These videos can help students understand how that process happens and how DNS makes it easy to navigate the web today.