Network+/Troubleshooting/Methodology
< Network+ | Troubleshooting
This lesson covers troubleshooting methodology.
Objectives and Skills
editObjectives and skills for the troubleshooting methodology portion of Network+ certification include:[1]
- Given a scenario, implement the following network troubleshooting methodology
- Identify the problem
- Gather information
- Duplicate the problem, if possible
- Question users
- Identify symptoms
- Determine if anything has changed
- Approach multiple problems individually
- Establish a theory of probable cause
- Question the obvious
- Consider multiple approaches
- Top-to-bottom/bottom-to-top OSI model
- Divide and conquer
- Test the theory to determine cause
- Once theory is confirmed, determine next steps to resolve problem
- If theory is not confirmed, re-establish new theory or escalate
- Establish a plan of action to resolve the problem and identify potential effects
- Implement the solution or escalate as necessary
- Verify full system functionality and if applicable implement preventative measures
- Document findings, actions, and outcomes
- Identify the problem