Network TroubleshootingCâu 100 / 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
Giải thích
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.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A pair of switch ports negotiated a duplex mismatch. Which symptom is most characteristic of this condition?
- After confirming a fix resolves the reported issue, which troubleshooting step should be performed next?
- A technician suspects a specific cable among many in a bundle. Which tool pair helps locate and identify that individual cable?
- A server's throughput is far below the link's rated speed, and interface counters show many output drops during peak traffic. What is the likely cause?
- Which command shows active TCP/UDP connections and listening ports on a local host?
- The final step of the troubleshooting methodology is to document the findings, actions, and outcomes. Why is this step important?
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