Final answer:
In Stateful DHCPv6, the host uses the EUI-64 algorithm to generate the remainder of its IPv6 address.
Step-by-step explanation:
In Stateful DHCPv6, when the client receives the network prefix, it uses the EUI-64 algorithm to generate the remainder of its IPv6 address.
The EUI-64 algorithm takes the client's 48-bit MAC address, inserts the FFFE sequence in the middle, and flips the seventh bit to create a 64-bit identifier.
For example, if the MAC address is 00:11:22:33:44:55, the EUI-64 identifier will be 02:11:22:ff:fe:33:44:55.