Outline Introduction to Application Layer Peer-to-peer paradigm Client-server paradigm Domain Name System (DNS) Flat-naming vs hierarchical-naming DNS Protocol World Wide Web (WWW) WWW Architecture Hypertext Transfer Protocol (HTTP) Multimedia Voice over IP (VoIP)
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Outline Introduction to Application Layer Peer-to-peer paradigm Client-server paradigm Domain Name System (DNS) Flat-naming vs hierarchical-naming.
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Outline Introduction to Application Layer
Peer-to-peer paradigm Client-server paradigm
Domain Name System (DNS) Flat-naming vs hierarchical-naming DNS Protocol
World Wide Web (WWW) WWW Architecture Hypertext Transfer Protocol (HTTP)
Multimedia Voice over IP (VoIP)
Peer-to-peer Paradigm
• The protocol machines are the same at both sides The same state-flow diagram
The same set of tasks and responsibilities
The same set of capabilities
• Forms the basis of telephone network
Client-server Paradigm
• The tasks, capabilities and protocol machines are different at each side.