CompTIA Network+ Question C-70

A network technician discovers an issue with spanning tree on the core switch. Which of the following troubleshooting steps should the network technician perform NEXT to resolve the issue?

A. Test a theory to determine the cause
B. Escalate to a senior technician
C. Identify the symptoms
D. Establish a theory of probable cause
E. Establish a plan of action

Correct Answer: D