Which two components does the LDP use to discover neighbors on a network segment? (Choose two)
A. 224.0.0.1 multicast address
B. 224.0.0.14 multicast address
C. 711 udp port
D. 224.0.0.2 multicast address
E. 646 tcp port
F. 711 tcp port
G. 646 udp port
