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Module 5: The Internet & Networking
Understand what happens between clicking a link and seeing a page, and how local and wide area networks connect.
2
Lessons
44
Minutes
Practice
Files Included
Intermediate
Level
What You'll Learn
- The steps in a web request, and what each looks like when it fails
- The roles of IP addresses, DNS, and protocols
- The difference between a LAN and a WAN, and how they connect
- Wired against wireless, and when each is the right choice
Real-World Scenario
A colleague reports that 'the internet is down.' The EHR will not load, but Outlook is receiving mail and a colleague's phone loads pages fine on the office wireless. Something is wrong, and the description you have been given is too vague to act on.
Lessons
Complete each lesson in order. Watch the video, review the notes, and finish the challenge.
Lesson 1⏱ 22 min
🌐Understanding the Internet
Learn what actually happens between clicking a link and seeing a page, and use that model to diagnose problems accurately.
Lesson 2⏱ 22 min
🌐Networking: LAN, WAN, and How They Connect
Distinguish local from wide area networks, understand how a LAN moves data, and see how the two connect to reach the internet.