沙俄企图侵占中国东北地区，制造“海兰泡惨案”的时间是（）。A．1898年B．1899年C．1900年D．1902年

A.show ip ospf

B.show ip ospf interface

C.show ip ospf neighbor

D.show ip ospf database

E.show ip ospf statistics

F.show running - config begin router ospf

A. stub

B. totally stubby

C. NSSA

D. totally NSSA

A.As numbers must be changed to match on all the routers.

B.Loopback interface must be configured so a DR is elected.

C.The no auto-summary command is needed on Router A and Router C.

D.Router B needs to have two network statements, one for each connected network.

Refer to the exhibit. A network associate has configured OSPF with the command:City(config-router) network 192.168.12.64 0.0.0.63 area 0After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement？ （）

A.FastEthernet0 /0

B.FastEthernet0 /1

C.Serial0/0

D.Serial0/1.102

E.Serial0/1.103

F.Serial0/1.104

A．10.1.1.2

B． 192.168.1.49

C． 10.1.1.1

D． 192.168.1.50

A. RTA will not establish an OSPF adjacency w ith RTB

B. RTA will send OSPF hello packets, but will not send OSPF updates

C. RTA will not accept OSPF hello packets from RTB

D. RTA will send OSPF updates, but will not establish an adjacency with RTB

A. ip route 10.10.10.1 255.255.255.255 s0/0 ip route 10.10.10.1 255.255.255.255 s0/1

B. network 10.10.10.0

C. no synchronization

D. neighbor 10.10.10.1 next - hop - self

A. Router RTA is the BDR

B. Router RTA is directly connected to interface 192.168.45.1

C. Neighbor 192.168.45.1 has changed its OSPF priority number

D. Router RTA and neighbor 192.168.45.2 are exchanging OSPF LSAs

A. Network B

B. Network A and Network B

C. Network A

D. neither Network A nor Network B

A．10.0.0.0/21

B．10.0.0.0/22

C．10.0.0.0/23

D．10.0.0.0/24