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OSPF的域间路由通告行为？问R1能够将AREA 1通告给AREA 0的域间路由在通告回AREA 1吗？为什么？
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更多 “OSPF的域间路由通告行为？问R1能够将AREA 1通告给AREA 0的域间路由在通告回AREA 1吗？为什么？” 相关考题
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【问题2】（6 分）根据网络拓扑和需求说明，完成路由器R1的配置。R1(config)# interface Serial 1/0R1(config-if)# ip address （3） 255.255.255.0 （设置串口地址）R1(config-if)#no shutdown （开启串口）R1(config)#interface FastEthernet0/0R1(config-if)#ip address （4） 255.255.255.0 （设置以太口地址）R1(config-if)#exitR1(config)#router ospf 1R1(config-router)#network 192.0.0.1 （5） area 0R1(config-router)#network 192.1.1.1 （6） area 0
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路由器R1的拓扑连接和地址分配如下图所示，如果在R1上安装OSPF协议，运行命令：router ospf 200，则配置E0和E1端口的命令分别是______。A．network 10.1.1.0 255.255.255.0 area 0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area 0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0．255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
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在[问题1]和[问题2]中，所使用的是静态路由协议。当该公司有多个分支机构，决定使用动态路由协议OSPF。下面是分支机构路由器R1的配置命令列表，在空白处填写合适的命令/参数，实现R1的正确配置。(注：点对点链路的area为2，分支机构局域网的area为3)。R1＞enR1conf termR1(config)no ip routeR1(config)router [ (6) ]R1(config-router)network[ (7) ]area 2R1(config-router)network[ (8) ]area 3R1(confiq-router)exitR1copy run start
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在OSPF中，路由域存在骨干域和非骨干域，某网络自治区域中共有10个路由域，其区域id为0~9，其中 （58） 为骨干域。A.Area 0B.Area 1C.Area 5D.Area 9
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路由器R1的拓扑连接和地址分配如图1-9所示，如果在R1上安装OSPF协议，运行下列命令：router ospf 200，则配置E0和E1端口的命令分别是(40)。A．network 10.1.1.0 255.255.255.0 area 0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area 0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0.255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
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Refer to the exhibit. OSPF is configured on all routers in the network. On the basis of the show ip ospf n eighbor output, what prevents R1 from establishing a full adjacency with R2? ()
A. Router R1 will only establish full adjacency with the DR and BDR on broadcast multi- access networks.B. Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area 1.C. Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2.D. Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area 2.E. The Hello parameters on routers R1 and R2 do not m atch.
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下面哪条命令不能使区域内路由器RTA某接口使能ospf()
A.[RTA-Serial0]ospf enable area 1B.[RTA-Ethernet0]ospf enable area 1C.[RTA-Serial0]ospf en area 2D.[RTA]ospf enable area 2
考题
路由器R1的连接和地址分配如下图所示，如果在Rl上安装OSPF协议，运行下列命令：router ospf 100，则配置s0和E0端口的命令是——。A．network 192．100．10．4 0．0．0．3 area 0 network 192．1．0．128 0．0．0．63 area 1B．network 192．100．10．5 0．0．0．3 area0 network 192．1．0．129 0．0．0．63 area lC．network 192．100．10．5 255．255．255．252 area0 nework 192．1．0．129 255．255．255．192 area lD．network 192．100．10．4 255．255．255．252 area0 network 192．1．0．128 255．255．255．192 area 1
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路由器R1的拓扑连接和地址分配如图5-3所示，如果在R1上安装OSPF协议，运行命令router ospf 200，则配置E0和E1端口的命令分别是(26)。A．network 10.1.1.0255.255.255.0 area0 network 192.168.1.0 255.255.255.0 area 1B．network 10.1.1.1 255.255.255.0 area0 network 192.168.1.1 255.255.255.0 area 1C．network 10.1.1.255 0.0.0.8 area 0 network 192.168.1.255 0.0.0.8 area 1D．network 10.1.1.0 0.0.0.255 area 0.0.0.0 network 192.168.1.0 0.0.0.255 area 1
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在OSPF中，路由域存在骨干域和非骨干域，某网络自治区域中共有10个路由域，其区域id为0~9，其中 （ ） 为骨干域。A.AreA.0
B.AreA.1
C.AreA.5
D.AreA.9
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在 OSPF 中，路由域存在骨干域和非骨干域，某网络自治区域中共有 10 个路由域，其区 域 id 为 0~9，其中（）为骨干域。
A. Area 0
B. Area 1
C. Area 5
D. Area 9
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VPNAccounting的三个site内部均已部署OSPF动态路由协议（均配置为Area0），用户希望通过MPLSVPN网络将这三个OSPF网络连接起来（直接交互OSPF内部路由），此时PE－CE间用OSPF路由协议，PE必须支持OSPF多实例。
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在OSPF区域1内通过重发布引入四条路由，分别是172.16.0.0/24~172.16.3.0/24，现在在ABR上通过area1range172.16.0.0255.255.252.0，那么，以下说法正确的是（）A、向骨干区域通告一条汇总路由B、向骨干区域通告一条汇总路由和四条细化路由C、向骨干区域通告四条细化路由D、应该用summary-address172.16.0.0255.255.252.0才能生效E、向区域1通告1条汇总路由F、向区域1通告一条汇总路由和四条细化路由
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一个AS包含三个OSPF区域，分别是骨干区域，Area1和Area2，Area1有两个网段20.1.1.0/24、20.1.2.0/24，以下关于区域间路由聚合描述正确的是？（）A、缺省情况下，区域1的ABR会对路由进行聚合B、为了使Area2的ABR向Area2中通告聚合路由，需要在Area2的ABR上对路由进行聚合C、可以在骨干区域上任意一个路由器对路由进行聚合D、为了使Area2的ABR向Area2中通告聚合路由，需要在Area1的ABR上对路由进行聚合
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R1, an ABR between backbone area 0 and area 1, has intra - area routes in area 0 for 10.1.1.0/24,10.1.2.0/24, and 10.1.3.0/24. These routes have metrics of 21, 22, and 23, respectively. An engineer then adds the area 0 r ange 10.1.0.0 255.255.0.0 command under the OSPF process of R1. Which of the following is true?（）A、R1 loses and then re - establishes neighborships with all neighbors.B、R1 no longer advertises 10.1.1.0/24 to neighbors into area 1.C、R1 advertises a 1 0.1.0.0/16 route into area 1 with a metric of 23 (largest metric).D、R1 advertises a 10.1.0.0/16 route into area 1 with metric of 21 (lowest metric).
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Which of the following answers can be verified as true based on the following command output from Router R1?（） R1#show ip ospf virtual - links Virtual Link OSPF_VL0 to router 4.4.4.4 is up Run as demand circuit DoNotAge LSA alloweD. Transit area 1, via interface FastEthernet0/1, Cost of using 3A、R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.B、The ping 4.4.4.4 command on R1 must currently be successful.C、R1's Fa0/0 OSPF cost is 3.D、4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.
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RTA与RTB运行OSPF路由协议，且都属于骨干区域。采用如下哪些方法能够将RTA的直连路由192.168.1.0/24发布到OSPF路由域中？（）A、[RTA-ospf-1]import-routestaticB、[RTA-ospf-1]import-routedirectC、[RTA-ospf-1-area-0.0.0.0]network192.168.1.00.0.0.255D、[RTA]iproute-static192.168.1.024null0RTA-ospf-1]import-routestatic
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两台MSR路由器MSR-1和MSR-2通过192.168.1.0/24网段互连。现在需要在路由器MSR-1上配置OSPF协议，与MSR-2正常建立邻接关系，下列哪项配置是可行的？（）A、[MSR-1]ospf [MSR-1-ospf-1]area0 MSR-1-ospf-1-area-0.0.0.0]network192.168.1.00.0.255.255B、[MSR-1]ospf [MSR-1-ospf-1]area0 MSR-1-ospf-1-area-0.0.0.0]network192.168.1.00.0.32.255C、[MSR-1]ospf [MSR-1-ospf-1]area0 MSR-1-ospf-1-area-0.0.0.0]network192.168.1.00.0.15.255D、[MSR-1]ospf [MSR-1-ospf-1]area0 MSR-1-ospf-1-area-0.0.0.0]network192.168.16.00.0.31.255
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两台MSR路由器通过OSPF实现动态路由学习，在其中一台路由器MSR-1上有三个接口IP地址分别为192.168.8.1/24、192.168.13.254/24和192.168.29.128/24，那么要通过一条network命令在这三个接口上启动OSPF，下列哪项配置是可行的？（）A、[MSR-1]ospf；[MSR-1-ospf-1]area0；[MSR-1-ospf-1-area-0.0.0.0]network192.168.1.00.0.255.255B、[MSR-1]ospf；[MSR-1-ospf-1]area0；[MSR-1-ospf-1-area-0.0.0.0]network192.168.1.00.0.32.255C、[MSR-1]ospf；[MSR-1-ospf-1]area0；[MSR-1-ospf-1-area-0.0.0.0]network192.168.1.00.0.63.255
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The following command output was gathered from Router R1, an ABR between areas 0 (backbone) and area 1. In this internetwork, area 0 contains all the subnets of cla ss A network 10.0.0.0. R1's OSPF process has a distribute - list prefix question in command configured. Assuming the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32A、R1 will not create/flood a type 3 LSA for subnet 10.1.2.0/26 into area 1B、R1 will not create/flood a Type 3 LSA for subnet 1 0.1.2.0/24 into area 1C、R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablED、R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
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Use the same scenario as the previous question, w ith one changE.Instead of the distribute-list prefix question in command configured on R1,R1's OSPF process has an area 1 filter-list prefix question in commandconfigured. Again assuming that the subnets listed in the answers actually exist in area 0. Which of the following occurs on router R1?（） R1#sh ip prefix - list ip prefix - list question: 4 entries seq 5 deny 10.1.2.0/24 ge 25 le 27 seq 15 deny 10.2.0.0/16 ge 30 le 30 seq 20 permit 0.0.0.0/0 le 32A、R1 will not create/flood a type 3 LSA for su bnet 10.1.2.0/26 into area 1B、R1 will not create/flood a Type 3 LSA for subnet 10.1.2.0/24 into area 1C、R1 will not have an OSPF route for subnet 10.1.2.0/26 in its IP routing tablED、R1 will not have an OSPF route for subnet 10.1.2.0/24 in its IP routing tablE
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什么命令序列将配置一个路由器运行OSPF，并添加网络10.1.1.0/24 area0？（）A、router ospf area 0 network 10.1.1.0 255.255.255.0 area 0B、router ospf network 10.1.1.0 0.0.0.255C、router ospf 1 network 10.1.1.0 0.0.0.255 area 0D、router ospf area 0 network 10.1.1.0 0.0.0.255 area 0E、router ospf network 10.1.1.0 255.255.255.0 area 0F、router ospf 1 network 10.1.1.0 0.0.0.255
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单选题请问以下配置中，R1的OSPF路由器ID是什么（） R1（config）#interface s0/0/0 R1（config-if）#ip add 192.168.2.1 255.255.255.252 R1（config）#int loopback 0 R1（config-if）# ip add 10.1.1.1 255.255.255.255 R1（config）#router ospf 1 R1（config-if）#network 192.168.2.0 0.0.3.255 area 0A
192.168.2.1B
10.1.1.1C
192.168.2.0D
255.255.255.255
考题
多选题Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command. Which of the following commands must have been configur ed on R1's Fa0/0 interface?（）Aip ospf authentication nullBip ospf authentication message - digestCip ospf authentication -key whatever- it - isDip ospf message - digest - key 1 md5 whatever - it - isEip ospf md5 1 key whatever - it - is
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