Internet
This chapter analyzes the Internet as a complex technical system composed of networks, devices, protocols, and infrastructures that enable digital communication on a global scale.
After introducing the fundamental concepts of network, host, and packet, the text delves into the main service organization models, such as client-server, peer-to-peer, distributed systems, and cloud computing, showing how data is exchanged, routed, and managed within the network.
The chapter then examines network hardware, different connection types, and the protocol stack, from DNS and the application layer to transport, IP addressing, and the link and physical layers.
Finally, the main parameters that determine the quality of service are presented, such as bandwidth, latency, jitter, and ping, which are essential for understanding the functioning and real-world performance of the Internet.
Index
Network fundamentals
Modelli di comunicazione nella rete
Distributed system
Network hardware
Communication methods
Network typologies
Mobile network
ISP architecture
Network administrator
Network Services
Network protocols
Application level
Transport level
Network layer
Link level
Physical level
Quality of service
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