Network Troubleshooting

The largest domain (24%): CompTIA’s structured troubleshooting methodology and the tools and commands used to diagnose issues.

CompTIA’s seven-step methodology is directly tested, in order:

1. Identify the problem (gather information, question users, determine what changed).
2. Establish a theory of probable cause (consider OSI top-down or bottom-up).
3. Test the theory to determine cause.
4. Establish a plan of action and identify potential effects.
5. Implement the solution or escalate.
6. Verify full system functionality and implement preventive measures.
7. Document findings, actions, and outcomes.

Expect questions that give a scenario and ask which step comes next.

After you confirm a theory of probable cause, what is the next step?

What is the FINAL step of CompTIA’s troubleshooting methodology?