Hardware & Network Troubleshooting第 100 / 100 题
A wired PC shows 'network cable unplugged' but the cable is seated. What should be tried next?
a.Reinstall the OS
b.Change the monitor
c.Replace the CPU
d.Test with a known-good cable and different switch port
解析
The message points to a physical link problem, so swapping in a known-good cable and trying another switch port isolates a bad cable or port. OS and unrelated hardware changes do not address a link-layer fault.
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