N10-005 · Question #507
An IP camera has a failed PoE NIC. This is the third time in months that a PoE NIC has failed on this device. The technician suspects a possible power issue. Which of the following should be used to…
The correct answer is D. Multimeter. A multimeter is the correct tool to test for a power issue. It measures electrical properties such as voltage, current, and resistance, allowing a technician to verify whether the PoE switch port is delivering the correct voltage and current levels. Repeated NIC failures…
Question
An IP camera has a failed PoE NIC. This is the third time in months that a PoE NIC has failed on this device. The technician suspects a possible power issue. Which of the following should be used to test the theory?
Options
- AToner probe
- BLoopback plug
- CProtocol analyzer
- DMultimeter
How the community answered
(16 responses)- A6% (1)
- B6% (1)
- C13% (2)
- D75% (12)
Explanation
A multimeter is the correct tool to test for a power issue. It measures electrical properties such as voltage, current, and resistance, allowing a technician to verify whether the PoE switch port is delivering the correct voltage and current levels. Repeated NIC failures suggest overvoltage, undervoltage, or power surges are damaging the hardware. A toner probe is used to trace and identify cable runs. A loopback plug tests whether a NIC port can send and receive data correctly. A protocol analyzer captures and inspects network traffic at the packet level - none of these address an electrical power fault.
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