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CompTIA Network+ Review Guide: Exam N10-006, 3rd Edition by Bill Ferguson

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Chapter 4

Domain 4.0 Troubleshooting

COMPTIA NETWORK+ EXAM OBJECTIVES COVERED IN THIS CHAPTER:

  • 4.1 Given a scenario, implement the following network troubleshooting methodology:
    • Identify the problem
      • Gather information
      • Duplicate the problem
      • Question users
      • Identify symptoms
      • Determine if anything has changed
      • Approach multiple problems individually
    • Establish theory of probable cause
      • Question the obvious
      • Consider multiple approaches
        • Top-to-bottom/bottom-to-top of OSI Model
        • Divide and conquer
    • Test the theory to determine cause
      • Once theory is confirmed, determine the next steps to resolve the problem
      • If theory is not confirmed, re-establish new theory or escalate
    • Establish a plan of action to resolve the problem and identify potential effects ...

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