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CompTIA

N10-005 · Question #375

Various desktop computers are not getting a link light even though the patch cables were replaced. Cables on a 110-block patch panel are suspected to be causing the issues. Which of the following…

The correct answer is A. Cable certifier C. Punch down tool. A 110-block is a punch-down style termination block used on patch panels. If cables were improperly terminated or not seated correctly, individual wire pairs may not make proper electrical contact. A punch down tool physically seats each wire conductor into the 110-block's…

Network troubleshooting

Question

Various desktop computers are not getting a link light even though the patch cables were replaced. Cables on a 110-block patch panel are suspected to be causing the issues. Which of the following hardware tools would MOST likely be used to troubleshoot and resolve the issue? (Select TWO).

Options

  • ACable certifier
  • BPing command
  • CPunch down tool
  • DCrimper
  • EToner probe

How the community answered

(71 responses)
  • A
    72% (51)
  • B
    17% (12)
  • D
    7% (5)
  • E
    4% (3)

Explanation

A 110-block is a punch-down style termination block used on patch panels. If cables were improperly terminated or not seated correctly, individual wire pairs may not make proper electrical contact. A punch down tool physically seats each wire conductor into the 110-block's insulation displacement connectors (IDC) to ensure a solid connection - resolving bad terminations. A cable certifier then verifies that the terminated cables meet performance standards (e.g., Cat5e or Cat6 specs) by testing for continuity, attenuation, crosstalk, and other metrics - confirming the fix. A crimper is used for attaching RJ-45 connectors to cable ends, not for 110-block terminations. A toner probe locates cables but does not fix terminations. The ping command is a software tool that cannot diagnose physical layer problems like a missing link light.

Topics

#110-block#punch down tool#cable certifier#physical layer troubleshooting

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