A user reports that a crucial fileshare is unreachable following a network upgrade that was completed the night
before. A network technician confirms the problem exists. Which of the following troubleshooting steps should
the network technician perform NEXT?


A. Establish a theory of probable cause.
B. Implement a solution to fix the problem.
C. Create a plan of action to resolve the problem.
D. Document the problem and the solution.