- Backbone: It is a large transmission line.
- Checksum: It is just a number that allows the receiving end of the packet to determine if any errors occurred in the transmission of the data.
- Computer network: Is when two or more computers are connected together in a way that allows them to communicate with each other.
- Domain Name System: Groups that many computers on the Internet into domains. Domains are hierarchical.
- Header: Part of what TCP does is to create a collection of information about the IP packet.
- Internet: A collection of computer networks that communicate with each other.
- Internet Corporation for Assigned Names and Numbers (ICANN): A nonprofit corporation that coordinates the assignment of Internet address and domain names.