A technician has been asked to troubleshoot an existing switched network but is unable to locate documentation for the VLAN configuration. Which of the following troubleshooting tools allows the technician to map and discover VLAN and port assignments?
-
cable analyzer
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network analyzer
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protocol analyzer
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knowledge base
B
Correct answer
Explanation
The correct answer is B because a network analyzer (packet sniffer) can capture and analyze VLAN tagged traffic, allowing discovery of VLAN assignments and port mappings. Cable analyzers test physical connectivity, protocol analyzers focus on protocol decoding, and knowledge bases are documentation repositories - none discover live VLAN configurations.