Summary  
This chapter introduces networking fundamentals, focusing on how devices connect and communicate to share data. It covers LAN and WAN topologies, key hardware components like routers and switches, and core protocols such as TCP/IP.  

General domain of usage  
Home network configuration


Networking refers to the process of connecting multiple devices, such as computers, smartphones, and servers, to share data and resources. This process is essential in modern communication and supports everything from emails to smart home systems. In the past, devices operated in isolation, but today, networks create an interconnected web that enables seamless data sharing across the globe.


Verkkotekniikan perusteet on kattava kurssi, joka on suunniteltu aloittelijoille ja keskitason oppijoille, jotka haluavat kehittää käytännön taitoja verkkotekniikassa. Kurssi kattaa kaiken perustavanlaatuisista käsitteistä edistyneisiin sovelluksiin ja käsittelee keskeisiä aiheita, kuten verkkotyypit, IP-osoitteet, protokollat ja verkkoturvallisuus. Kurssin lopussa hallitset olennaiset taidot verkkojen vianmääritykseen, suojaamiseen ja hallintaan, mikä luo vankan pohjan jatkoerikoistumiselle verkkotekniikassa.

Learn about the history and evolution of networking technologies and how modern communication systems rely on networks. This section provides a comprehensive overview of how devices communicate and share resources efficiently across different types of networks.

Discover the fundamental role of IP addressing in identifying devices on a network and how subnetting helps optimize network efficiency. This section covers the basics of IP addressing, introduces subnetting techniques to segment networks, and explores how these concepts contribute to smooth communication across connected devices.

Explore the foundational rules and protocols that govern how data is transmitted and received over networks. This section delves into essential networking models, such as the OSI Model and the TCP/IP Model, while covering widely-used protocols like HTTP, FTP, and DNS. Understanding these protocols ensures that devices communicate effectively, regardless of their underlying technologies, creating seamless interactions between global networks.

Learn how to protect networks from cyber threats by implementing essential security measures. Explore firewalls, intrusion detection systems, and encryption techniques to safeguard data. This section also covers securing both wired and wireless networks, helping you maintain robust network security in various environments.

Discover the essential tools and techniques used to diagnose and resolve network issues. Learn how to identify and address common network problems, monitor performance, and ensure networks are running optimally. This section will also cover best practices for maintaining a network and keeping it secure.

What is Networking?

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What is Networking?