The Internet: Crash Course Computer Science

The video explains the structure of the internet, detailing how data is routed through LANs, WANs, and the internet backbone. It covers the basics of IP and UDP protocols, including their roles in data transmission. The TCP protocol is explored, highlighting its features like sequence numbers and acknowledgments. The Domain Name System (DNS) is explained, showing how domain names are mapped to IP addresses. Finally, the OSI model is introduced, illustrating the layers of network processes and the importance of abstraction.

What is the significance of sequence numbers in TCP packets?

What are the advantages and disadvantages of using UDP over TCP?

How does the domain name system (DNS) relate to IP addresses?

What are the layers of the OSI model discussed in the text?