A.802.1D

B.802.3AF

C.802.1U

D.802.3

E.802.3X

A.The two routers can pass IPSec VPN OSPF, the tunnel establishes the neighbor relationship and the intranet route changes.

B.Two routers have established IPSec VPN through the aggressive mode, and then the tunnels are established between the two least interacting devices.

C.Two routers have established IPSec VPN, 5 ( ) in the main mode, and the data from the first message is often encrypted.

D.Savage mode can support traversal while main mode does not support traversing NAT, NAT

A.In the routing table, the routing entries identified by the OSPF identifier can be learned through Type 1/2/3/5 LSAs.

B.In the routing table, the routing entries identified by the O_ASE identifier can be learned only through route import.

C.In the routing table, the routing entries marked OSPF can be learned only through Type 1 LSAs.

D.In the routing table, the routing entries identified by the OSPF identifier can be learned only through Type
3 LSAs.

A.1 LSA 2 LSA 5 LSA Classes, Classes and Classes

B.3 LSA 4 LSA Classes and Classes

C.7 LSA class

D.1 LSA 2 LSA Classes and Classes

E.1 LSA 2 LSA 3 LSA Classes, Classes and Classes

A.Route-Policy node " " node Route-Policy's relationship is inter-filter or , that is, as long as it passes a filter, it can pass.

B.When the BGP BGP BGP pair is received, the routing policy is executed, and the unwanted routing routes are not added to the local.
Routing table

C.Route-Policy node if-match " " In the same one, multiple attributes of different attributes are or

D.Configure a routing policy for routes originating in the local area. The policy is effective before adding routes to the routing table.