Which IPv6 feature helps minimize IPv6 DoS attacks on a network?

IPv6 Destination Guard helps minimize IPv6 DoS attacks by preventing a device from processing packets destined for an address that is not present in its neighbor cache. This means if a malicious actor floods a device with traffic for non-existent IPv6 addresses, the device will drop these packets early, before expending significant resources on lookup or processing, thus mitigating the DoS effect. IPv6 Binding Security Table is related to DHCPv6 snooping and secures the binding of IPv6 addresses to MAC addresses, not directly preventing DoS attacks from unknown destinations. IPv6 Router Advertisement Guard protects against rogue RAs but doesn't address destination-based DoS. IPv6 Prefix Guard prevents unauthorized prefix announcements, which is a different security concern.