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?

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

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

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

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

CompTIA Network+ N10-009
Network Troubleshooting
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