Câu 133: 400-251: CCIE Security Written Exam

Which statement is true regarding Dynamic ARP inspection (DAI)?

1. A. It requires to enable DHCP snooping to build untrusted database for dropping invalid APR requests and responses.
2. B. It validates ARP requests and responses on untrusted ports using IP-To-MAC address binding. — đáp án hiện tại
3. C. It drops invalid ARP responses and requests on the switch trusted ports.
4. D. It forwards invalid ARP responses and requests on switch untrusted ports.
5. E. It validates ARP requests and responses on trusted ports using IP-To-MAC address binding.
6. F. It is only supported in DHCP environments to detect invalid ARP requests and responses.