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PW0-105 · Question #144

What statement about 802.3af Power over Ethernet (802.3, Clause 33) is true?

The correct answer is A. If a dual-radio access point requires 12W to operate, a PoE power source supplies 15.4W to the powered. See the full explanation below for the reasoning.

Question

What statement about 802.3af Power over Ethernet (802.3, Clause 33) is true?

Options

  • AIf a dual-radio access point requires 12W to operate, a PoE power source supplies 15.4W to the powered
  • B802.3af-compliant endpoint and midspan PSE devices support 10/100 as well as Gigabit (1000Base-T)
  • CClass 1 powered devices may use a maximum of 29W of power.
  • D802.3af-compliant Ethernet switches must be able to simultaneously support class 3 powered devices on
  • EThere are two classes of 802.3af PSEs: Type A supports up to 7W and Type B supports up to 15W of

How the community answered

(64 responses)
  • A
    84% (54)
  • B
    2% (1)
  • C
    8% (5)
  • D
    2% (1)
  • E
    5% (3)

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