Course Code: itn
Have you ever wondered how networks started? In your first lesson, you will learn how networks have evolved over the last hundred years. By the time you've completed this lesson, you will have a framework of knowledge that will take you through the rest of the course.
In this lesson, you will jump right into networks and networking, with examples from everyday experience. You will learn how to tell the difference between a network and networking and realize that computer networks are a lot like freeway networks. You will never look at an interstate the same way again.
Have you ever heard someone refer to a computer as a server? Maybe you've heard someone talk about connecting computers in a peer-to-peer environment. In this lesson, you will learn how to tell the difference between client/server and peer-to-peer networks, and when to use one instead of the other.
Many people have heard of Ethernet, but what does that mean exactly? This lesson is all about Ethernet. Is Ethernet or Token Ring the best modern network technology, and why? In this lesson, you will get those answers and many more.
This lesson explores how routers operate, and you will see why routers operate a lot like how a receptionist in a growing company handles telephone calls. Then, you will find out how a single interconnected network (the Internet) can actually span the entire globe.
Computers communicate over a network using something called a protocol. Protocols are similar to languages, and in this lesson, you will learn about the protocols used in networking. You will also learn which protocol has emerged as the dominant computer protocol, and why.
This lesson explores how the networking protocol TCP/IP operates. You will learn how TCP/IP uses addresses to direct data to its rightful owner—it's similar to how you use street addresses.
Have you ever wondered how your computer converts a World Wide Web address into a website that appears on your screen? In this lesson, you will learn how the Domain Name System (DNS) translates names into numeric addresses, and how all that allows your favorite website, email, or file to appear on your computer screen.
This lesson looks at Wide Area Networks (WANs) and how they compare to Local Area Networks (LANs). You will learn all about how data gets sent over long distances and how the Internet changed expensive, long-distance network connections. You will also learn how VPNs secure those Internet connections from prying eyes.
If you connect to the Internet, you use remote access. This lesson explores the traditional means of connecting to remote LANs and how DSL and cable Internet access works. You will learn the means by which many people connect to the Internet, including wireless and cellular networks.
In this lesson, you will apply many of the concepts you've learned so far in this course. You will come to understand what's going on behind the scenes. From there, you will learn how to connect to the Internet using broadband connections, configuring a home router, and testing what you've done.
Your final lesson ties together all the previous lessons, clarifying how new information about networks and networking can be quickly understood. You will learn three categories into which networking knowledge can be placed.
David Iseminger is a computer and networking expert and an experienced teacher of networking topics. He has worked at Microsoft Corporation as a telecommunications specialist, networking performance analyst, and lead programming writer for cutting-edge network disciplines. Iseminger has also published 12 books about computers and networking. He is a graduate of the University of Washington, where he earned degrees in English and Comparative Literature, with a minor in writing.
There are no prerequisites to take this course.
The instructional materials required for this course are included in enrollment and will be available online.
Instructor-Led: A new session of each course begins each month. Please refer to the session start dates for scheduling.
Self-Paced: You can start this course at any time your schedule permits.
Instructor-Led: Once a session starts, two lessons will be released each week, for the 6 week duration of your course. You will have access to all previously released lessons until the course ends.
Self-Paced: You have three-month access to the course. After enrolling, you can learn and complete the course at your own pace, within the allotted access period.
Instructor-Led: The interactive discussion area for each lesson automatically closes 2 weeks after each lesson is released, so you're encouraged to complete each lesson within two weeks of its release.
Self-Paced: There is no time limit to complete each lesson, other than completing all lessons before your three-month access.
Instructor-Led: The Final Exam will be released on the same day as the last lesson. Once the Final Exam has been released, you will have 2 weeks plus 10 days to complete the Final and finish any remaining lessons in your course. No further extensions can be provided beyond these 10 days.
Self-Paced: Because this course is self-paced, no extensions will be granted after the start of your enrollment.
Excellent course content, good analogies and examples. Explained in an easily understood manner. Content was perfect for an introductory course."
Excellent course. Lots of information was provided, however it was a very easy-to-follow format and it was kept interesting."
Excellent use of illustrations as a means of clarifying initially difficult concepts. Very clear writing style. I also enjoyed the humor. Overall, an excellent course."
Finally, someone who completely understands his subject and is capable of conveying that understanding to others. This course met the criteria for effective teaching: Explain clearly, Illustrate and show practical application. I will be back for more!!!"
I especially liked the instructor's writing style and analogies. I feel the course taught me what it promised."
I really, really enjoyed this class and I am a recent Information Systems graduate. There needs to be more instructors like David Iseminger. He is very user friendly. I will take his next course."
I think course was very informative organized very well and the concepts built on each other to help with understanding the topics. I really enjoyed the course and plan to take additional courses in the future."
I thought the presentation of the material by the instructer was done in a way that made it easy to understand the various complex issues in this course."
I wanted to learn more about a complex and somewhat abstract subject ie networks and networking. I was pleased that the writing style kept my interest and introduced complex subjects in a matter of fact style. I don't think I would have gotten as much out of just reading a book on the subject. Certainly has proven helpful to me in my day to day dealings with computer networks and the internet thank you."