CWNA: Certified Wireless Network Administrator v109 — Question 2

A dual-band 802.11ac AP must be powered by 802.3at PoE. As a class 4 device, what minimum power level should be received at the AP assuming a proper cable length?

Answer options

• A. 25.5 W
• B. 30 W
• C. 12.95 W
• D. 15.4 W

Correct answer: A

Explanation

The correct answer is A, 25.5 W, which is the minimum power that a class 4 device under 802.3at PoE can receive. Options B, C, and D are incorrect because they either exceed or do not meet the minimum required power levels for proper operation of the device.