A.Level-1 Hello message of ISIS

B.Level-2 SNP and LSP of ISIS

C.Level-1 SNP and LSP of ISIS

D.Level-2 Hello packet of ISIS

A.ISATAP

B.6to4

C.Dual Stack

D.NAT64

A.EBGP neighbors must establish neighbor relationships through directly connected physical interface addresses.

B.The router will send BGP updates learned from its EBGP neighbors to its own other IBGP neighbors and EBGP neighbors.

C.The router will send BGP updates learned from its IBGP neighbors to its own other IBGP neighbors and EBGP neighbors.

D.IBGP neighbors can establish neighbor relationships through loopback interfaces.

E.IBGP neighbors must be directly connected. Otherwise, IBGP-Multi-hop must be configured

F.EBGP neighbors must be directly connected. Otherwise, EBGP-Multi-hop must be configured

A.False

B.True

A.Special area routers cannot establish OSPF neighbor relationships with regular area routers

B.As -External-lsa is released to the Stub area

C.ASBR-Summary-LSA is allowed to be advertised to the NSSA area.

D.Any OSPF area can be configured as a special area