Q1 Multiple choice Flag Which three statements about MPLS Label Distribution Protocol (LDP) are valid? Select all that apply. A LDP hello packets are sent to UDP port 646 B LDP hello packets are sent to TCP port 711 C LDP sessions are TCP sessions to port 646 D LDP sessions are TCP sessions to port 711 E LDP establishes a peer relationship with another router that must be directly attached. F LDP can establishes a peer relationship with another router that is not directly attached Correct answer