• 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.