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NETWORKING FUNDAMENTALS · PART 1

Network Fundamentals / Basics PART 1 | What is a NETWORK

This introductory lesson builds the foundation for networking. It explains what a network is, why devices communicate, the difference between local and wide-area network types, how the Internet fits into networking, common topologies, hosts and network interfaces, transmission media, protocols, endpoints, and core infrastructure devices.

Network Basics LAN / WLAN PAN / MAN / WAN Internet Topologies Network Interfaces Protocols Infrastructure

Lesson Files

Download the teaching material used with this video.

Part 1 — Teaching Slides Definitions and explanations covering network fundamentals, network types, Internet, topologies, interfaces, media, and protocols.

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Part 1 — Network Diagrams Visual diagrams for LAN, WLAN, PAN, MAN, WAN, network devices, interfaces, media, topologies, and basic network paths.

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NETWORKING FUNDAMENTALS · PART 2

Networking Fundamentals for Beginners Part 2 | Local vs Remote, Routing & Client-Server

Part 2 explains how a host decides whether a destination is local or remote, why the IP prefix matters, and why routing is needed between separate networks. It then introduces internetworking, clients, servers, network services and resources, request-and-response communication, client-server architecture, peer-to-peer networking, and a practical troubleshooting path.

Local vs Remote IP Prefix Routing Internetworking Clients Servers Services & Resources Peer-to-Peer Troubleshooting

Lesson Files

Download the teaching material used with this video.

Part 2 — Teaching Slides Explanations of local and remote communication, prefixes, routing, clients, servers, services, resources, P2P, and troubleshooting.

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Part 2 — Network Diagrams Visual examples of same-network and different-network communication, routing, client-server relationships, services, resources, and P2P.

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NETWORKING FUNDAMENTALS · PART 3

Networking Fundamentals Part 3 | Packets, Frames, Encapsulation & Network Performance

Part 3 follows data as it moves across a network. It covers bits and bytes, protocol data units, IP packets, headers and payloads, Ethernet frames, encapsulation and decapsulation, physical transmission over copper, fiber, and wireless, and the key performance concepts of bandwidth, latency, throughput, packet loss, and jitter.

Data Bits & Bytes Packets Frames Headers & Payloads Encapsulation Signals Bandwidth Latency Throughput Loss & Jitter

Lesson Files

Download the teaching material used with this video.

Part 3 — Teaching Slides Detailed explanations of data, packets, frames, encapsulation, physical signaling, and important network-performance measurements.

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Part 3 — Network Diagrams Visual diagrams showing data representation, packets, frames, encapsulation, transmission media, bandwidth, latency, throughput, packet loss, and jitter.

File Pending