Section 20: Troubleshooting Physical Networks

Question 1

*Network Troubleshooting Methodology (Seven Steps)

Answer 1

1. Identify the problem
2. Establish a theory to probable the cause
3. Test the theory to determine the cause
4. Establish a plan of action to resolve the problem and identify potential effects
5. Implement the solution or escalate as necessary
6. Verify full system functionality and, if applicable, implement preventive measures
7. Document findings, actions, outcomes, and lesson learned

Question 2

Cable Signal Issues (Copper, Fiber, Appropriate Tool)

Answer 2

Attenuation: Copper - Cable Certifier;
Fiber - Fiber Light Meter
Interference: Copper and Fiber - Spectrum Analyzer
Decibel Loss: Copper - Cable Certifier / Cable Analyzer
Fiber - Fiber Light Meter