Network TroubleshootingQuestion 100 of 100
A newly connected device gets no link light and no connectivity, while other ports on the same switch work. What should the technician verify first?
a.The ISP's routing table
b.The corporate DNS zone file
c.The organization's SLA terms
d.The patch cable and physical port connection
Explanation
With a dead port while neighbors work, the fault is almost certainly local, so the technician should first verify the patch cable and physical connection, swapping the cable and trying another port. A missing link light points to a Layer 1 problem rather than addressing or routing. Confirming physical connectivity comes before higher-layer checks.
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