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Crucial Exams

CompTIA Network+ N10-009 Practice Question

A network administrator has deployed PoE to power VoIP phones across an office, but several of the phones are not powering up despite being compatible with the technology. The switch is PoE-enabled, and cables are all Cat 6. The administrator suspects that the issue may be related to a power standard mismatch. What is the most likely cause of the problem?

  • There is a firmware incompatibility between the VoIP phones and the PoE switch.

  • The Ethernet cables are damaged, causing insufficient power delivery.

  • The VoIP phones and the switch are operating on incompatible PoE standards (e.g., 802.3af vs. 802.3at)

  • VoIP phones are set to a static IP causing conflicts in power allocation.

CompTIA Network+ N10-009
Network Troubleshooting
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