Unit Contents

Overview

Lesson 1 - Connectionless and Connection-Oriented Networks

Lesson 2 - Physical Circuits and Virtual Circuits

Lesson 3 - Protocols, Programs, and Processes

Lesson 4 - Protocol Layering Concepts

Lesson 5 - Review of the OSI Model

Lesson 6 - Addressing

Lesson 7 - LAN Protocol Analyzer Operations

Summary

   Overview

This first unit serves as a review of some fundamental concepts that are foundational to the understanding of the material in the remainder of the course. The lessons cover important information about services, layering, and protocols that will help you better understand key points, such as the benefits of layering, service layer interfaces, the role of protocols, and peer process communications. Additionally, you will learn how a protocol trace is taken and how to interpret the trace data.

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