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N10-009 · Question #169

Which of the following steps in the troubleshooting methodology comes after using a top-to-top buttom examination of the OSI model to determine cause?

The correct answer is B. Establish a plan of action. After determining the cause of a problem, based on a troubleshooting methodology like the OSI model, the next logical step is to establish a plan of action to resolve it.

Submitted by deeparc· Mar 6, 2026Network Troubleshooting

Question

Which of the following steps in the troubleshooting methodology comes after using a top-to-top buttom examination of the OSI model to determine cause?

Options

  • ATest in the theory
  • BEstablish a plan of action
  • CVerify full system functionality
  • DIdentify the problem

How the community answered

(32 responses)
  • A
    3% (1)
  • B
    88% (28)
  • C
    3% (1)
  • D
    6% (2)

Why each option

After determining the cause of a problem, based on a troubleshooting methodology like the OSI model, the next logical step is to establish a plan of action to resolve it.

ATest in the theory

"Test the theory" typically comes *before* determining the cause, often after establishing a probable cause.

BEstablish a plan of actionCorrect

In the standard troubleshooting methodology, once the root cause of a problem has been identified or a theory has been tested and confirmed, the next step is to develop a plan of action to implement the solution and resolve the issue.

CVerify full system functionality

"Verify full system functionality" occurs *after* the plan of action has been implemented and the solution applied.

DIdentify the problem

"Identify the problem" is the *first* step in the troubleshooting methodology, preceding any detailed examination of the OSI model to determine the cause.

Concept tested: Troubleshooting methodology steps

Source: https://www.comptia.org/certifications/a/what-is-troubleshooting

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