Networking

9 th Grade Computer Science Rotation Mr. Fedder/Mr. Crowley

Networking ,[object Object],[object Object],[object Object],[object Object]

Networking ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Networking: Terms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

History of Networking ,[object Object],[object Object],“ THE INTERNET?”

Internet Timeline DarpaNet Berners-Lee Mosaic Browser

Internet Connectivity - Growth 1991 1992 Jan. 1993 Feb. 1994 Nov. 1994 Jun. 1996 Jun. 1997

Networking - Addressing ,[object Object],http://www.friendscentral.org/default.asp [email_address] ,[object Object],File Name Server Name Service Name Mailbox Name Domain Name Top-Level Domain Top-Level Domain Domain Name

Networking – Domains ,[object Object]

Networking – Domains http://www.friendscentral.org org org 65.61.134.112

Networking - Internet ,[object Object],1 2 3 5 4

Networking – Routing Single Point of Failure

IP: 192.168.2.161 IP: 192.168.1.5 63.139.238.193 192.168.100.100 216.239.49.214 www.google.com 64.233.161.99 64.233.161.99 Name Server

Traceroute 192.168.100.100 63.139.238.193 216.239.49.214 64.233.161.99

Networking – Communication Stack ,[object Object]

Networking – Communication Stack (cont.) ,[object Object]

Networking – Hardware ,[object Object]

Networking – Data Communication

Networking – Communication Stack Data: Network: Name, Address, Phone, Visa, 0231234490987111 Transport: TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info Address Address ,[object Object],TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info “ Segment” “ Packet” How Many Packets? What Order? Who am I? Where do I go?

Networking – Communication Stack ,[object Object],Address Hub TCP info TCP info Address DATA TCP info TCP info Address Address DATA DATA Router Router Internet “ Segment” TCP info TCP info Address Address DATA “ Packet” Hub

Networking

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