Exam FC0-U61 topic 1 question 258 discussion

D. Researching the knowledge base Explanation: When a technician looks up an error code in an online forum or vendor documentation, they are gathering information to understand the issue. This aligns with the troubleshooting methodology step "Researching the knowledge base", which involves checking manuals, forums, and other resources for known issues and solutions. Why not the other options? A. Documenting the lessons learned – This step occurs after troubleshooting is completed, not during research. B. Verifying full system functionality – This step happens after a fix is applied, to confirm the issue is resolved. C. Establishing a theory of probable cause – Before forming a theory, the technician needs to gather information, which is what they are doing now. Since the technician is actively searching for existing documentation, "Researching the knowledge base" is the best answer.