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CompTIA

N10-009 · Question #95

A user's VoIP phone and workstation are connected through an inline cable. The user reports that the VoIP phone intermittently reboots, but the workstation is not having any network-related issues…

The correct answer is A. The PoE power budget is exceeded. Power over Ethernet (PoE) delivers power to devices such as VoIP phones over the same cables used for data. If the total power requirement of connected devices exceeds the PoE power budget of the switch or injector, some devices may not receive adequate power and could…

Submitted by cyberguy42· Mar 6, 2026Network troubleshooting

Question

A user's VoIP phone and workstation are connected through an inline cable. The user reports that the VoIP phone intermittently reboots, but the workstation is not having any network-related issues Which of the following is the most likely cause?

Options

  • AThe PoE power budget is exceeded.
  • BPort security is violated.
  • CThe signal is degraded
  • DThe Ethernet cable is not working

How the community answered

(45 responses)
  • A
    58% (26)
  • B
    7% (3)
  • C
    11% (5)
  • D
    24% (11)

Explanation

Power over Ethernet (PoE) delivers power to devices such as VoIP phones over the same cables used for data. If the total power requirement of connected devices exceeds the PoE power budget of the switch or injector, some devices may not receive adequate power and could intermittently reboot. This issue would not affect the workstation, which is likely receiving power

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