Which of the following is helpful to allow an IPv6 host to learn the IP address of a default gateway on its subnet?（）

A. Stateful DHCP
B. Stateless DHCP
C. Stateless autoconfiguration
D. Neighbor Discovery Protocol

A. Subnet prefix
B. ISP prefix
C. Global routing prefix
D. Registry prefix

A. FE80::10::123
B. FE8::1::123
C. FE80:0:0:0:10::123
D. FE80::10:0:0:123