After a patch panel change, an entire floor loses wired network. Best focus?
Multiple choice — select one answer
Answer choices
Architectural breakdown & explanation
Physical layer and switch port mapping errors affect many hosts at once.
Correct answer(s): a. Verify cable pairs, switch port VLANs, and link lights
Exam domain: Domain 5: Hardware and Network Troubleshooting (29% weight on the official guide).
Official documentation & study links
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