A network engineer is not judged by how well they configure a network.
They are judged by how well they solve problems when things fail.
Networks fail.
Cables break.
Devices disconnect.
Configurations change.
The difference between a beginner and an engineer is the troubleshooting approach.
A beginner asks:
"What command should I type?"
An engineer asks:
"What is happening at each layer?"
By the end of this mission, students should understand:
✅ A structured troubleshooting process.
✅ How to troubleshoot Ethernet problems.
✅ How to use Layer 1, Layer 2, and Layer 3 thinking.