Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1‘s Fa0/0 configuration.Which of the following is true regarding the resul

题目

Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1‘s Fa0/0 configuration.Which of the following is true regarding the results from this change?（）

A. The show ip ospf neighbor command on R1 lists the revised Hello timer

B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer

C. The R1 - R2 neighborship fails due to Hello timer mismatcH

D. The show ip ospf interface command on R1 lists the revised Hello timer

参考答案和解析

参考答案：C, D

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第1题

Routers R1 and R2, currently EIGRP neighbors over their Fa0/0 interfaces (respectively),both use EIGRP authentication. Tuesday at 8 p.m. the neighborship fails.Which of the following wo uld not be useful when investigating whether authenticationhad anything to do with the failure？（）A. debug eigrp packetB. show key chainC. show ip eigrp neighbor failureD. show clock

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第2题

Refer to the exhibit.HostA cannot ping HostB.Assuming routing is properly configured,what could be the cause of this problem?（）A、HostA is not on the same subnet as its default gatewayB、The address of SwitchA is a subnet addressC、The Fa0/0 interface on RouterA is on a subnet that cannot be usedD、The serial interfaces of the routers are not on the same subnetE、The Fa0/0 interface on RouterB is using a broadcast address

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第3题

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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第4题

Ten routers, R1 through R10, connect in a partial mesh over Frame Relay. For the mesh, R1 and R2 have PVCs connected to all other routers, but Routers R3 through R10 act as branch routers, with only two PVCs - one to R1 and one to R2. The routers u se IP subnet 10.1.1.0/24, with addresses 10.1.1.1, 10.1.1.2, and so on, through 10.1.1.10, respectively. The routers all use Inverse ARP to learn Frame Relay mapping information. All routers use a multipoint subinterface with network type point - tomultip oint nonbroadcast. A co - worker's implementation plan lists lots of configuration commands related to this design. The design states that all hosts should be able to ping all other hosts. Which commands are required for proper functioning of OSPF in this case?（）A、frame - relay map commands on R3 - R10 referencing the other routers in this groupB、Nine OSPF neighbor commands on each routerC、Nine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10D、R1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDRE、R3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR

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第5题

Router R1 has been configured with the commands rout er eigrp 9 and network 172.16.2.0 0.0.0.255, with no other current EIGRP configuration. R1's (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable via interface Fa0/0, including the rou ter with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode. Which of the following occurs？（）A、Fa0/0 failsB、The command is rejecteDC、The existing three neighbors failD、The neighborship with 172.16.2.20 fails and then reestablishesE、None of the other answers is correct

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第6题

Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0 interfaces. R1 learns a route from R2 using EIGRP f or IPv6. That route lists F0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2's F0/0 interface. Which of the following is true about R1's route?（） interface f0/0 mac - address 1111.1111.1 111 ipv6 address 2000::/64 eui - 64 ipv6 address 2001::1/64A、The next hop is 2000::1311:11FF:FE11:1111B、The next hop is FE80::1311:11FF:FE11:1111C、The next hop is FE80::5111:11FF:FE11:1111D、The next hop is 2001::1

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第7题

Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR, and dynamically discover OSPF neighbors?（）A、ip ospf network broadcastB、ip ospf network non - broadcastC、ip ospf network point - to - multipointD、ip ospf network point - to - multipoint non - broadcast

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Routers R1 and R2 are OSPF neighbors using their Fa0／0 interfaces, respectively, using def

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