Huawei
H12-311_V3.0 · Question #280
Regarding the two major standards of PoE, which of the following statement is incorrect? (Multiple choice)
The correct answer is A. The 802.af standard was formulated in 2009, and the maximum output power is 30W C. 802.af, also known as PoE+, is compatible with 802.at devices. See the full explanation below for the reasoning.
WLAN Basic Knowledge
Question
Regarding the two major standards of PoE, which of the following statement is incorrect? (Multiple choice)
Options
- AThe 802.af standard was formulated in 2009, and the maximum output power is 30W
- B802.at supports four power levels and only supports Category 5 lines
- C802.af, also known as PoE+, is compatible with 802.at devices
- D802.at, also known as PoE+, is compatible with 802.af devices
How the community answered
(65 responses)- A78% (51)
- B6% (4)
- D15% (10)
Topics
#PoE#802.3af#802.3at#power standards
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