When you think about an infrastructure, you think about a framework or a foundation. After all, infra- means within and structure is a foundation.
An infrastructure supports or holds something together. The Internet is similarly held together by an infrastructure, a basic framework of technologies.
This module discusses the core components of the Internet infrastructure, methods for establishing Internet
connections, and ways to troubleshoot connectivity problems.
By the end of this module, you will be able to:
Explain the OSI (Open System Interconnection) model
Describe the core components of the Internet infrastructure and how they relate to each other
Describe the uses of hardware and software network connection devices
Describe the various Internet bandwidth technologies
Describe the purposes, functions, and features of various types of servers
Troubleshoot problems with Internet connectivity using various diagnostic tools
In the next lesson, you will learn about the OSI network architecture model.