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The Internet, which started out as a way for researchers to exchange short ASCII text messages between universities and research institutes containing valuable information like "how's the weather there?", is now worldwide converged broadband communications.
It's still used to ask other people about the weather, but is now able to stream Good Morning America in 4K to watch on your toaster in the morning if you like.
In this module, we'll start at the beginning, with the fundamentals of the Internet design then build one idea on top of another with the Inter-Net protocol then ISPs, DNS, the Web, HTML and HTTP, Web Hosting, Cloud Computing and finishing with AI Data Centers.
Course Lessons
1. Introduction - The Internet, Cloud Computing and Data Centers
2. A Network to Survive Nuclear War
3. The Inter-Net Protocol
4. Internet Service Providers (ISPs)
5. Domain Name System (DNS)
6. The Web, HTML and IoT
7. Web Servers and HTTP
8. Web Hosting, Web Services and Cloud Computing
9. Data Centers
Based on Teracom’s famous Course 101, tuned and refined over the course of 20 years of instructor-led training, we’ll cut through the jargon to demystify network fundamentals, explaining the jargon and buzzwords, the underlying ideas, and how it all works together… in plain English.
A course completion certificate is awarded upon passing the course exam.
Course Outline
1. Introduction - The Internet, Cloud Computing and Data Centers
2. Network to Survive Nuclear War
Our favorite urban myth, that the Internet was a network designed to be able to survive a nuclear war, is a good way of understanding the design fundamentals of the Internet: TCP for reliable communications over an unreliable IP packet network, and frequent router table updates to recover from circuits going dead.
3. The Inter-Net Protocol
How it started with taxpayers' dollars being used to pay for dedicated lines between universities and research institutes. The need for a common network addressing scheme and packet format that resulted in IP: IP addresses and address classes, IP packets, IP routers, IP routing tables and the IP packet routing algorithm.
4. Internet Service Providers (ISPs)
No need to go to a university to get onto the Internet today, commercial companies provide access to it from your home, business, and pocket. What an ISP actually is, what they do, and how they get your packets delivered to people in Timbuktu. How ISPs connect in Internet Exchanges with transit or peering agreements.
5. Domain Name System (DNS)
The telephone books of the Internet (for those who know what a telephone book is): A collection of line items that associate a name to a number; in this case, not last name, first name, street address to a phone number like in the old days, but domain name to IP address. How DNS servers resolve a domain name in an URL to the IP address of a server so you can start sending packets to it. URLs and URIs.
6. The Web, HTML and IoT
How the browser initiates communications by asking the server for a file of HTML code from the server, downloads the content of the file and turns it into graphics on your screen. Browsers also upload form data to servers for processing. Things that have no screens also upload data to servers.
7. Web Servers and HTTP
The HTTP protocol and the three commands: GET, POST and OK. How they're used to ask for the file, and how the server returns it in HTTP messages over a TCP connection between HTTP client and HTTP server over the Internet. How a port number is used to identify a particular application. How the HTTP server application running on a computer listens on port 80, and the HTTPS server app listens on port 443.
8. Web Hosting, Web Services and Cloud Computing
Finding hardware: processor, memory and disk space on which to run an HTTP server, starting with do-it-yourself, then basic web site hosting, virtual machines, very sophisticated virtualization software that makes sites available around the world, and the hundreds of types of resources, toolkits and programs available from AWS and the like as their "cloud" service offerings.
9. Data Centers
The buildings that house the computers the server and its back end run on. Halls full of rows of racks with shelves, each holding a computer. Where data centers are located and why: electricity cost, cooling cost, land cost and proximity to other data centers, Internet Exchanges and fiber routes. NSA's Utah Data Center where a record if not copy of everything you've done over the Internet is stored for future analysis. The enormous amounts of electricity AI data centers need, and its effect on residential electricity prices.
Teracom is the leader in telecommunications training. In business since 1992, we supply this training to the US government under our GSA schedule contract, which means pre-approved quality and pricing. We're so confident of the quality of this training, it comes with a 30-day money-back guarantee.
