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H12-211_V3.0 · Question #642

Which of the following description is wrong about the Layer 2 Ethernet switch?

The correct answer is D. It is necessary to make certain modifications to the three-layer header of the forwarded message, and. See the full explanation below for the reasoning.

Question

Which of the following description is wrong about the Layer 2 Ethernet switch?

Options

  • ALayer 2 Ethernet switch works at the data link layer
  • BAbility to learn MAC address
  • CForward according to the Layer 2 header information of the Ethernet frame
  • DIt is necessary to make certain modifications to the three-layer header of the forwarded message, and

How the community answered

(37 responses)
  • A
    16% (6)
  • B
    3% (1)
  • C
    8% (3)
  • D
    73% (27)

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