Which two statements regarding route reflectors are true? (Choose two)
A.
A non-route reflector capable router cannot be a client.
B.
A hierarchical route reflector design is where a route reflector client is not directly connected to the route reflector.
C.
If a client has IBGP sessions to other clients in the same cluster, those clients will receive unnecessary duplicated BGP updates.
D.
If a client in one cluster has an IBGP session to a route reflector that belongs to different clusters, the clients in the other cluster will receive unnecessary duplicated BGP updates.