Network+ Guide to Networks 4th - CHP 12 - Troubleshooting Network Problems

Network+ Guide to Networks 4th - CHP 12 - Troubleshooting Network Problems

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Network+ Guide to Networks, Fourth Edition Chapter 12 Troubleshooting Network Problems
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Network+ Guide to Networks, 4E 2 Objectives Describe the steps involved in an effective troubleshooting methodology Follow a systematic troubleshooting process to identify and resolve networking problems Document symptoms, solutions, and results when troubleshooting network problems Use a variety of software and hardware tools to diagnose problems
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Network+ Guide to Networks, 4E 3 Troubleshooting Methodology Steps for troubleshooting network problems: Identify symptoms and potential causes Identify affected area Establish what has changed Select most probable cause Verify user competency Re-create problem Verify physical integrity of network connection Verify logical integrity of network connection
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Network+ Guide to Networks, 4E 4 Troubleshooting Methodology (continued) Steps for troubleshooting network problems (continued): Implement an action plan and solution and be prepared for all potential effects Test the result Identify results and effects of solution Document solution and process
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Network+ Guide to Networks, 4E 5 Identify the Symptoms and Potential Causes Questions that may help identify non-obvious symptoms: Access to network affected? Network performance affected? Data and/or programs affected? Only certain network services affected? Problems include local application, networked application, or multiple networked applications? Specific error messages reported? One user or multiple users affected? Symptoms manifested consistently?
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Network+ Guide to Networks, 4E 6 Identify the Affected Area Figure 12-1: Identifying the area affected by a problem
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Network+ Guide to Networks, 4E 7 Identify the Affected Area (continued) Figure 12-1 (continued): Identifying the area affected by a problem
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Network+ Guide to Networks, 4E 8 Identify the Affected Area (continued) Figure 12-2: Identifying the chronological scope of a problem
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Network+ Guide to Networks, 4E 9 Identify the Affected Area (continued) Figure 12-2 (continued): Identifying the chronological scope of a problem
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Network+ Guide to Networks, 4E 10 Establish What Has Changed Questions to help pinpoint problems resulting from a network change: OS or configuration on a server, workstation, or connectivity device changed? New components added to server, workstation, or connectivity device? Old components removed from server, workstation, or connectivity device? New users or segments added to the network? Server, workstation, or connectivity device moved from previous location to new location?
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Network+ Guide to Networks, 4E 11 Establish What Has Changed (continued) Questions to help pinpoint problems resulting from a network change (continued): Was a server, workstation, or connectivity device replaced? Was new software installed on a server, workstation,
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This note was uploaded on 03/28/2010 for the course NETWORK+ G Networks+ taught by Professor None during the Three '10 term at University of Sydney.

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Network+ Guide to Networks 4th - CHP 12 - Troubleshooting Network Problems

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