CompTIA A+ Complete Practice Tests, 3rd Edition

Chapter 5Hardware and Network Troubleshooting

THE COMPTIA A+ 220-1101 TOPICS COVERED IN THIS CHAPTER INCLUDE THE FOLLOWING:

• 5.1 Given a scenario, apply the best practice methodology to resolve problems.
  • Always consider corporate policies, procedures, and impacts before implementing changes
    • 1. Identify the problem
      • Gather information from the user, identify user changes, and, if applicable, perform backups before making changes
      • Inquire regarding environmental or infrastructure changes
    • 2. Establish a theory of probable cause (question the obvious)
      • If necessary, conduct external or internal research based on symptoms
    • 3. Test the theory to determine the cause
      • Once the theory is confirmed, determine the next steps to resolve the problem ...