N10-009 · Question #123
N10-009 Question #123: Real Exam Question with Answer & Explanation
The correct answer is B: Power budget exceeded. When installing multiple Power over Ethernet (PoE) devices like security cameras, it is crucial to ensure that the total power requirement does not exceed the power budget of the PoE switch. Each PoE switch has a maximum power capacity, and exceeding this capacity can cause some
Question
A network administrator is in the process of installing 35 PoE security cameras. After the administrator installed and tested the new cables, the administrator installed the cameras. However, a small number of the cameras do not work. Which of the following is the most reason?
Options
- AIncorrect wiring standard
- BPower budget exceeded
- CSignal attenuation
- DWrong voltage
Explanation
When installing multiple Power over Ethernet (PoE) devices like security cameras, it is crucial to ensure that the total power requirement does not exceed the power budget of the PoE switch. Each PoE switch has a maximum power capacity, and exceeding this capacity can cause some devices to fail to receive power. PoE Standards: PoE switches conform to standards such as IEEE 802.3af (PoE) and 802.3at (PoE+), each with specific power limits per port and total power capacity. Power Calculation: Adding up the power requirements of all connected PoE devices can help determine if the total power budget of the switch is exceeded. Symptoms: When the power budget is exceeded, some devices, typically those farthest from the switch or connected last, may not power up or function correctly.
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