Lecture Notes on How Networks Work

NETW-202 Network Fundamentals The First Cisco Acaemy Course

Why Have a Network

What is a Network

An Example of a LAN

An Example of a CAN

An Example of a MAN

An Example of a WAN

How a Network Works Layer by Layer

The Relationship of the Protocol Stack and the Operating System

The OSI and TCP/IP Models

Where Did TCP/IP Come From

Routed v Routing Protocols

The Software Based Layers

The Application Layer

The Transport Layer

The Network Layer

The Hardware Based Layers

The Data Link Layer

The Physical Layer

Addressing in Networks

Addressing in Networks

Host Addressing

Network Addressing

Diagram to use with the VLSM Procedure

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How a Single Network Works

How Ethernet Works

How Multiple Networks are Connected to Each Other

Routers

Routing Protocols