Mobile Networking · Course 4
Mobile Data Under the Hood
How a phone gets online over cellular, shares it, and stays reachable.
- 1Getting Online Over Cellular12 min · How your phone joins the carrier's data network and gets an IP address.
- 2Hotspots & Tethering11 min · Share your phone's mobile data with other devices, and learn what that reveals.
- 3IPv6 on Phones13 min · Why mobile networks moved to IPv6, and how phones still reach IPv4 sites.
- 4How Push Notifications Arrive12 min · How one always-on connection delivers alerts for every app on your phone.
Hands-on
Do it on the simulated phone
Every lesson has a lab you can try in your browser, plus questions that earn points toward the Signal Path badge.
Start lesson 1