JNCIP-ENT: Juniper Networks Certified Professional – Enterprise Routing (2024) — Question 22

You are deploying IP phones in your enterprise network that must receive their power through their Ethernet connection. You are using your EX Series switch's PoE ports that support IEEE 802.3af.
In this scenario, what is the maximum amount of power allocated to each interface?

Answer options

• A. 10.2 W
• B. 15.4 W
• C. 30 W
• D. 50 W

Correct answer: B

Explanation

The correct answer, B (15.4 W), is the maximum power that can be delivered per port under the IEEE 802.3af standard for Power over Ethernet. Options A (10.2 W), C (30 W), and D (50 W) exceed the limits set by this standard, making them incorrect for this scenario.