During OSPF adjacency formation, in what state is a router when it is negotiating to be in charge of the database synchronization process?（）..

第1题

[] During OSPF adjacency formation, in which state is a router in when it is negotiating to be in charge of the database synchronization process?（） During OSPF adjacency formation, in which state is a router in when it is negotiating to be in charge of the database synchronization process?（）

A、A.A B、B.B C、C.C D、D.D

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第2题

[单选题] During OSPF adjacency formation, in which state is a router in when an OSPF hello packet has been sent but bi-directional communication has not been achieved?（）

A、A B、B C、C D、D

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第3题

[单选题] You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）

A、OSPF authentication errors between some of the routers B、Two routers have the same OSPF router ID C、Issues with mistuned OSPF timers D、OSPF LSA pacing issues between some of the routers E、OSPF neighbor adjacency problems between some of the routers

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第4题

[多选题] During a redistribution of routes from OSPF into EIGRP, an ad ministrator notices that none of the OSPF routes are showing in EIGRP. What are two possible causes?（）

A、incorrect distribute lists have been configured B、missing ip classless command C、CEF not enabled D、no default metric configured for EIGRP

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第5题

[单选题] Which of the following OSPF messages contains entire complete LSAs used during the database exchange process?（）

A、LSR B、LSAck C、LSU D、DD E、Hello

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第6题

[单选题] During OSPF adjacency formation, in which state is a router when it is sending LSA header information to its neighbor?（）

A、A B、B C、C D、D

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第7题

[单选题] During OSPF adjacency formation, in which state is a router in when it is negotiating to be in charge of the database synchronization process?（）

A、A B、B C、C D、D

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第8题

[单选题] 单域MPLS BGP VPN中，当PE和CE之间运行OSPF路由协议发现VPN用户路由时，为什么需要OSPF超级骨干区域（）。

A、为了保证VPN用户OSPF内部路由传递给同一VPN的其他Site时，仍然作为OSPF内部路由，而不会成为OSPF外部路由 B、为了使得用户OSPF协议报文比骨干OSPF路由更新报文具有更高的优先级 C、为了保证MPLS骨干区域的OSPF内部路由不被作为OSPF外部路由注入用户VPN内 D、为了保证VPN用户OSPF内部路由不会作为OSPF外部路由注入到骨干区域

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第9题

[单选题] 两台MSR路由器RTA和RTB通过192.168.1.0/20网段互联，现在对两台路由器执行如下命令： [RTA]ospf1 [RTA-ospf-1]area 0 [RTA-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255 [RTB]ospf 100 [RTB-ospf-100]area 1 [RTB-ospf-100-area-0.0.0.1]network 192.168.1.0 0.0.0.255 从以上配置可以判断（）。

A、RTA和RTB可以建立OSPF邻居关系 B、RTA和RTB不可以建立OSPF邻居关系，若将areaID配置成一致，就可以建立OSPF邻居关系 C、RTA和RTB不可以建立OSPF邻居关系，若将OSPF进程号配置成一致，就可以建立OSPF邻居关系 D、RTA和RTB不可以建立OSPF邻居关系，必须将OSPF进程号和areaID都配置成一致，才可以建立OSPF邻居关系

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During OSPF adjacency formation, in what state is a router when it is negotiating to be in charge of the database synchronization process?（）

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