Final answer:
The claim that all IPv6 devices automatically join a solicited node multicast group is true. These multicast groups are used for efficient neighbor discovery and address resolution as part of the Neighbor Discovery Protocol (NDP) on local networks.
Step-by-step explanation:
The statement that 'All IPv6 devices will join a solicited node multicast group address' is TRUE. When an IPv6 device configures its network interface, it automatically joins a solicited-node multicast group. This group corresponds to each unicast and anycast address assigned to the interface.
The purpose of these multicast groups is to enable efficient neighbor discovery and address resolution. Solicited-node multicast addresses are a critical component of the Neighbor Discovery Protocol (NDP), which IPv6 devices use to determine the link-layer address of other IPv6 devices on the same local network.
TRUE. All IPv6 devices will join a solicited node multicast group address. In IPv6, when a device is assigned an IPv6 address, it also automatically joins the corresponding solicited node multicast group address.
This ensures that important network service announcements and other communication related to that device are efficiently distributed to the devices that need to receive them.