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Certified Ethical Hacker (CEH) Practice Question

During a red-team assessment you successfully poisoned the ARP caches of multiple VLAN hosts and captured their clear-text credentials. The network team wants a built-in switch control that will validate every ARP packet against the DHCP-snooping binding table and automatically drop forged replies, without requiring any software changes on endpoints. Which switch feature should they enable as a countermeasure?

  • Port Security with sticky MAC addresses

  • Dynamic ARP Inspection (DAI)

  • IP Source Guard

  • BPDU Guard

Certified Ethical Hacker (CEH)
Network and Perimeter Hacking
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