Introduction to Networking

Livro digital

Título:
Introduction to Networking

Autor:
Charles Severance

Categoria:
Tecnologia > Cloud

Doador:
Raffaello D. N.

Sinopse:
The Internet feels effortless — a web address, a tap, and the world streams in. But behind that simplicity lies a stack of protocols, routing decisions, and packet retransmissions that most users never see and even fewer truly understand. From the shared air of a Wi-Fi link to the way routers forward data across continents, Charles Severance unpacks every layer of networked communication so that anyone — regardless of technical background — can grasp how billions of devices talk to each other every second. The journey moves bottom-up through the four-layer TCP/IP model: the Link layer, where physical media and coordination protocols handle single-hop transmission; the Internetwork layer, where IP addressing and routing algorithms steer packets across multiple hops; the Transport layer, which reassembles, retransmits, and controls flow; and the Application layer, where HTTP, IMAP, and custom protocols turn raw connectivity into web pages, email, and real-time services. A dedicated chapter on DNS explains how human-readable names map to numeric addresses, while a full chapter on SSL and certificates demystifies the encryption that protects modern web traffic. The book closes by comparing the TCP/IP model with the seven-layer OSI model, showing how abstract and implementation models serve different purposes. What sets this book apart is its visual language: every concept is accompanied by SketchNote-style illustrations hand-drawn by Mauro Toselli, turning dense protocol stacks into memorable, digestible diagrams. The material was battle-tested in Severance's Coursera course taken by over 100,000 learners, so the explanations carry the clarity of a widely refined lecture series. Readers walk away not just memorizing layers and acronyms, but understanding why the Internet was designed the way it is — and how that design stays flexible enough to connect trillions of devices in the decades ahead.