Which two requirements must be met to allow an administrator to configure LLT heartbeats over UDP? (Choose two.)

Which two requirements must be met to allow an administrator to configure LLT heartbeats over UDP? (Choose two.)
A . The LLT private links must be on the same subnet.
B . Each NIC must have an IP address configured before configuring LL
D . LLT must be configured in the same subnet.
E . Each link must have a unique UDP port.
F . Broadcast must be enabled for the heartbeat subnet.

Answer: B,D