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N10-009 · Question #541

Which of the following attacks forces a switch to send all traffic out of all ports?

The correct answer is C. MAC flooding. MAC flooding overwhelms a switch's CAM (Content Addressable Memory) table by sending a flood of frames with spoofed MAC addresses. Once the CAM table overflows, the switch cannot learn legitimate MAC addresses and defaults to flooding all frames out all ports, effectively…

Submitted by obi.ng· Mar 6, 2026Network Security

Question

Which of the following attacks forces a switch to send all traffic out of all ports?

Options

  • AARP poisoning
  • BEvil twin
  • CMAC flooding
  • DDNS spoofing

How the community answered

(49 responses)
  • A
    6% (3)
  • B
    2% (1)
  • C
    90% (44)
  • D
    2% (1)

Explanation

MAC flooding overwhelms a switch's CAM (Content Addressable Memory) table by sending a flood of frames with spoofed MAC addresses. Once the CAM table overflows, the switch cannot learn legitimate MAC addresses and defaults to flooding all frames out all ports, effectively turning it into a hub. This allows an attacker to capture traffic not originally destined for their port.

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