Which messages are used by IPv6 Neighbor Discovery Protocol (NDP)?

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Multiple Choice

Which messages are used by IPv6 Neighbor Discovery Protocol (NDP)?

Explanation:
IPv6 Neighbor Discovery Protocol uses two specific ICMPv6 messages for link-layer address resolution: Neighbor Solicitation to query a neighbor’s link-layer address and Neighbor Advertisement to respond with that address. This is how IPv6 maps IP addresses to MAC addresses on the local link, replacing IPv4’s ARP. The other messages shown belong to different mechanisms: ARP is IPv4’s address resolution, DHCP Discover/Offer are for obtaining IP configuration, and ICMP Echo Request/Reply are tests of reachability rather than neighbor discovery.

IPv6 Neighbor Discovery Protocol uses two specific ICMPv6 messages for link-layer address resolution: Neighbor Solicitation to query a neighbor’s link-layer address and Neighbor Advertisement to respond with that address. This is how IPv6 maps IP addresses to MAC addresses on the local link, replacing IPv4’s ARP. The other messages shown belong to different mechanisms: ARP is IPv4’s address resolution, DHCP Discover/Offer are for obtaining IP configuration, and ICMP Echo Request/Reply are tests of reachability rather than neighbor discovery.

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