Exam 300-410 topic 1 question 137 discussion

given answer is correct, first two lines from this article: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_fhsec/configuration/15-s/ip6-fhs-bind-table.html

B & C are correct

B, C : https://www.exam-answer.com/ipv6-first-hop-security-binding-table-operation

Ref: IPv6 First-Hop Security Binding Table – Cisco “… Overview of the IPv6 First-Hop Security Binding Table … This database, or binding table, is used by various IPv6 guard features to validate the link-layer address (LLA), the IPv4 or IPv6 address, and the prefix binding of the neighbors to prevent spoofing and redirect attacks. … IPv6 First-Hop Security Binding Table Recovery Mechanism The IPv6 first-hop security binding table recovery mechanism enables the binding table to recover in the event of a device reboot. …” A. by IPv6 HSRP to make sure neighbors are authenticated before being used as gateways Wrong answer. B. by various IPv6 guard features to validate the data link layer address Correct answer. C. by the recovery mechanism to recover the binding table in the event of a device reboot Correct answer. D. by IPv6 routing protocols to securely build neighborships without the need of authentication Wrong answer. E. by storing hashed keys for IPsec tunnels for the built-in IPsec features Wrong answer.

The given answer is correct