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Chapter 1
Troubleshooting Methodology
Having a network baseline is an invaluable troubleshooting tool. The
information contained in a network baseline can be used for reference
and comparison to aid in quick problem resolution.
It is important to document changes so you have a "trail" of what was
done on the network. It also aids in reversing any changes that were
made that adversely affected the network.
Key Terms
Before you take the exam, be sure you are familiar with the following key
terms:
action plan
baseline
boundary of dysfunctionality
divide-by-half troubleshooting
fact gathering
inside-out troubleshooting
iterations
observing results
outside-in troubleshooting
problem definition
troubleshooting model
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