A.Hello, Link State Update, Link State Packet, Link State Acknowledgement, Database Descriptor

B.Hello, Link State Update, Link State Request, Link State Acknowledgement, Database Descriptor

C.Link State Update, Link State Refresh, Link State Acknowledgement, Database Descriptor, Notification

D.Hello, Link State Refresh, Link State Update, Link State Acknowledgement, Link State Authentication

A.OSPF is not enabled on one of the routers.

B.The router ID is the same on both routers.

C.An OSPF Hello has not been received from the neighbor.

D.The interfaces are configured as point-to-point on one side and broadcast on the other.

E.The MTU does not match on both interfaces.

A.IES has a configurable IP-MTU

B.IES does not support QoS.

C.A virtual route table must be configured for an IES service.

D.An IES interface has an IP address assigned to it.

A.Inter-Area Prefix

B.Intra-Area Prefix

C.Inter-Area Router

D.AS External

A.Router R1 generates a type 7 LSA that is flooded through area 1. Router R3 generates a type 5 LSA that is flooded through areas 0 and 2.

B.Router R1 generates a type 5 LSA that is flooded through all OSPF areas.

C.Router R1 generates a type 5 LSA that is flooded through area 1. Router R2 generates a type 7 LSA that is flooded through areas 0 and 2.

D.Router R1 generates a type 7 LSA that is flooded through all OSPF areas.