Question
Which of the following steps of the troubleshooting methodology would most likely include checking through each level of the OSI model after the problem has been identified?
- A. Establish a theory. Correct
- B. Implement the solution.
- C. Create a plan of action.
- D. Verify functionality.
Explanation
Establishing a theory of probable cause is the step right after identifying the problem, and it includes questioning the obvious and considering multiple approaches such as working top-to-bottom or bottom-to-top through the OSI layers. Creating a plan of action and implementing the solution come after a theory has been tested and confirmed. Verifying functionality checks that the fix worked, rather than searching layer by layer for the cause.
