CompTIA Network+ (N10-006) — Question 39

A company suffers an outage due to a bad module in a core switch.
Which of the following is the proper order of troubleshooting?

Answer options

• A. Gather information, start at the top of the OSI model, and work down.
• B. Establish a plan of action to solve the problem.
• C. Establish a theory, identify the problem, duplicate the problem, test the theory, and repeat.
• D. Gather information, start at the bottom of the OSI model, and work up.

Correct answer: B

Explanation

The correct answer is B, as establishing a plan of action is crucial before attempting to troubleshoot effectively. Options A and D suggest starting at different layers of the OSI model without a strategic plan, which may lead to inefficient troubleshooting. Option C outlines a theory-based troubleshooting approach, but without a clear plan, it may lack direction.