When designing an EIGRP network, which two things should you take into consideration? (Choose two.)
A . ASN and K values must match.
B . The neighbor command can be used to enable unicast communication.
C . The neighbor diameter cannot exceed a 15-hops limit.
D . NSSA areas can be used to redistribute external routes.
E . Neighbor relationship can be established with non-Cisco routers.
Answer: AB