CIS 1000 Lecture Notes - Lecture 7: National Science Foundation, Data-Rate Units, Internet Backbone

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1000
• Professor: Jing Yu Zhu

Document Summary

Unit 7 how the internet works: several non-profit organization and user groups are responsible for managing the internet, the national science foundation (nsf) still pays fo(cid:396) a la(cid:396)ge po(cid:396)tio(cid:374) of the i(cid:374)te(cid:396)(cid:374)et"s infrastructure and research and development. Isps are connected through an internet exchange point (ixp): one or more network switches. Transmission control protocol and internet protocol: the ip is responsible for sending information from one computer to another. Ip address: a unique identification number that defines each computer, service, or other device connected to the internet. Ip addresses must be registered with the international corporation for assigned names and numbers (icann) to e(cid:374)su(cid:396)e they"(cid:396)e all u(cid:374)i(cid:395)ue: an ip address in binary form is as follows: 11000101. 10101001. 01001001. 00111111: each of the four segments is an octet, there are 32 number positions total, maybe them 32-bit, there are over 4 billion possible ip addresses. Internet protocol version 4 (ipv4): the original ip addressing scheme, created in 1981.