Course Resources
Course Overview
Before You Begin
About This Course
About WestNet
Media and Quizzes
Media
Quizzes
WestNet Related Titles
WestNet Advantage
The OSI Model
Lesson 1 - Introduction to the OSI Model
Introduction
The OSI Open Standard
The OSI Stack
Lesson 2 - The Physical Layer
Introduction
Hardware Devices
A Stream of Bits
Minimal Error Detection
Example: Manchester Encoding
Lesson 3 - The Data Link Layer
Introduction
Frames Across a Link
Data Link Layer Services
Error Detection and Correction: FCS
Data Link Layer Protocols
One Link, One Frame
Lesson 4 - The Network Layer
Introduction
Packets Across Networks
Network Layer Addresses vs. Data Link Layer Addresses
Packet Routing
Basic Data Transmission Methods - A
Basic Data Transmission Methods - B
Network Layer Services
Network Layer Protocols
Lesson 5 - The Transport Layer
Introduction
End-to-End Communication
Transport Layer Services - A
Transport Layer Services - B
Transport Layer Protocols
Lesson 6 - The Session Layer
Introduction
Electronic Conversations
Establishing, Conducting, and Ending a Session
Dialogs
Session Layer Protocols
Lesson 7 - The Presentation Layer
Introduction
Computer Numbering
Presentation Layer Services - A
Presentation Layer Services - B
Lesson 8 - The Application Layer
Introduction
Common Application Layer Programs - A
Common Application Layer Programs - B
Summary
Summary
