Question 20 - 220-1102 Operational Procedures Practice Test for the CompTIA A+ Core Series Exam

A senior engineer at your company is working on a customer ticket, and has established what he believes is the reason for the problem. While doing some research on the resolution, he comes across a possible solution, immediately implements it and closes the ticket. However, he appears to have missed a major step in the troubleshooting theory. Which step did he miss?

establishing a new theory
establishing a probable cause
conducting internal research
verifying system functionality

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