Physical Bandwidth - ANS-EM wave form, measured in Hz. May be converted to bit/sec-
numbers of 0 and 1 depends on frequency
Regional ISP - ANS-provides Internet access for customers in a specific geographic area, with
hidden information. Logical/Abstract with different informations.
Global ISP - ANS-connections between countries
Local ISP - ANS-Internet access within a community
Circuit Switching - ANS-Physical Layer
a dedicated connection is formed between two points and the connection remains active for the
duration of the transmission, connection oriented. Designed for voice communication, fragile
Added support to MM Graphical Interface WB
Packet switching - ANS-Network Layer
the transmission technology that divides blocks of text into packets, connectionless (on
demand)
Packets - ANS-Chunk of data
, Protocols - ANS-Control the sending and receiving message, define format and taken into
actions
TCP
IP
HTTP
Skype
802.11
TCP - ANS-Transmission Control Protocol, at transportation layer. Basic rules defining internet
with IP
IP - ANS-Network Layer
Internet Protocol. Basic rules defining internet with TCP
HTTP - ANS-Application. Layer
Hypertext Transfer Protocol
802.11 - ANS-Foundation of Wifi. The IEEE standard for wireless networking.
Router - ANS-Part of Packet Switches at Network layer with IP address and memory
Switch - ANS-Part of Packet Switches at Data Link layer with MAC address and not memory
capable
Internet Standards - ANS-RFC: Request for comments, governed by IETF
IETF: Internet Engineering Task Force
Internet as Service Prodiver - ANS-Provide service to applications (Use Cases)
-Web, VoIP, email, games, e-commerce, social ntw
Provide programming interface/infrastructure to application
-Allow send/receiving application program to connect to internet
-Provide Service Options
Network Edge - ANS-hosts: clients and servers
servers often in data centers
End System - ANS-Connection to the network, access network and physical media:
wired
wireless
mobile
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