In different scenarios, RSTP provides different protection functions. Which of the following statements is wrong?

Question

Options

• AAfter the BPDU protection function is enabled on the switching device, if the edge port receives RST BPDU, the edge port will be set as a non-edge port, and the spanning tree calculation will be performed again
• BAfter the Root Guard BPDU message check function is enabled, the number of times the switching device processes TC BPDU messages within a unit time is configurable
• CThe designated port with the root protection function enabled, its port role can only remain as the designated port
• DThe designated port with root protection enabled, when the port receives a better RSTBPDU, the port will enter the Discarding state and no longer forward packets, if the port does not receive a better RST BPDU for a period, it will automatically return to the normal Forwarding state

• A
  85% (23)
• B
  4% (1)
• C
  7% (2)
• D
  4% (1)

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