多选题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?（）AThe show ip ospf neighbor command on R1 lists the revised Hello timerBThe show ip ospf interfac e brief command on R1 lists the revised Hello timerCThe R1 - R2 neighborship fails due to Hello timer mismatcHDThe show ip ospf interface command on R1 lists the revised Hello timer
多选题
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
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A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at th e ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. R1 and R2 do not share a common subnet, relying on other routers internal to the Enterprise for IP connectivity between the two routers.Which of the following could be used to prevent potential routing loops in this design?（）A. Using an iBGP mesh inside the Enterprise coreB. Configuring default routes in the Enterprise pointing to both R1 and R2C. Redistributing BGP routes into the Enterprise IGPD. Tunneling the packets for the i BGP connection between R1 and R2
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?（）A. ip ospf authentication nullB. ip ospf authentication message - digestC. ip ospf authentication -key whatever- it - isD. ip ospf message - digest - key 1 md5 whatever - it - isE. ip ospf md5 1 key whatever - it - is
Refer to the exhibit and the partial configuration on router R2. On router R4 all RIP routes are redistributed into the OSPF domain. A second redistribu tion is configured on router R2 using a route map. Based on the configuration on router R2, which EIGRP external routes will be present in the routing table of R1?（）A. the routes originating from the RIP routing domainB. the routes originating from the OSPF stub areaC. all OSPF inter and intra - area routesD. all routes originating from RIP and OSPF routing domains
Refer to the exhibit. Looking at the topology diagram and the partial router configurations shown, which statement is true? () A.The NProuter has two OSPF neighbors in the Full adjacency stateB.The NProuter serial0/0 interface has the OSPF dead timer set to 10 secondsC.The NProuter serial0/0 interface has been configured with an OSPF network type of pointtopointD.The 10.1.1.1 and 10.1.1.2 routers are not using the default OSPF dead and hello timers settingE.The Mismatched error is caus ed by the expiration of the OSPF timers
Refer to the exhibit. On the basis of the configuration provided, how are the Hello packets sent by R2 handled by R5 in OSPF area 5?() A. The Hello packets will be exchanged and adjacency will be established between routers R2 and R5.B. The Hello packets will be exchanged but the routers R2 and R5 will become neighbors only.C. The Hello packets will be dropped and no adjacency will be established between routers R2 and R5.D. The Hello packets will be dropped but the routers R 2 and R5 will become neighbors.
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.
OSPF is configured over a Frame Relay network as shown in the exhibit. All PVCs are active.However, R1 and R3 fail to see all OSPF routes in their routing tables. The show ip ospf neighbor command executed on R2 shows the state of t he neighbors. What should be done to fix the problem? （）A. The ip ospf network broadcast command should be configured on each Frame Relay interfaceB. The ip ospf network non -broadcast command should be configured on each Frame Relay interfaceC. Th e ip ospf priority value on the spoke routers should be set to 0D. The ip ospf priority value on the hub router should be set to 0E. The neighbor command should be configured under the OSPF routing process on all routers
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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
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
Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which one of the following is true?（）A、R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.B、For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.C、For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.D、No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.
You administer a network that uses two routers， R1 and R2， configured as an HSRP group to provide redundancy for the gateway. Router R1 is the active router and has been configured as follows： R1#configure terminal R1（config）#interface fa0/0 R1（config-if）#ip address 10.10.0.5 255.255.255.0 R1（config-if）#standby 1 priority 150 R1（config-if）#standby preempt delay minimum 50 R1（config-if）#standby 1 track interface fa0/2 15 R1（config-if）#standby 1 ip 10.10.0.20 Which of the following describes the effect the standby preempt delay minimum 50 command will have on router R1？（）A、 The HSRP priority for router R1 will increase to 200.B、 Router R1 will become the standby router if the priority drops below 50.C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down. D、 Router R1 will wait 50 seconds before attempting to preempt the active router.
An engineer has added the following configuration snippet to an implementation planning document. The configuration will be added to Router R1, whose Fa0/0 interface connects to a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors with each of her. Assuming the snippet shows all commands on R1 related to EIGRP authentication, which answer lists an appropriate comment to be made during the implementation plan peer review?（） key chain fred key 3 key - string whehew interface fa0/0 ip authenticat ion key - chain eigrp 9 fredA、The configuration is missing one authentication - related configuration commandB、The configuration is missing two authentication - related configuration commandsC、Authentication type 9 is not supported; type 5 should be u sed insteaDD、The key numbers must begin with key 1, so change the key 3 command to key 1
Two directly connected routers， R1 and R2， are both configured for OSPF graceful restart. R2 is able to switch packets in hardware， but R1 is not. If a network administrator logs on to R2 and performs a system reload， which will be the result？（）A、Traffic forwarded from R2 to or through R1 will continue to be forwarded based on the forwarding table state at the time of the reload.B、R2 will continue to forward traffic to R1， but R1 will drop the traffic because its neighbor adjacency with R2 has failed.C、R2 will continue forwarding traffic to and through R1， but R1 will drop this traffic because it is not capable of maintaining its forwarding state.D、All the traffic R2 is forwarding to or through R1 will be dropped while OSPF rebuilds its neighbor adjacency and forwarding tables.
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.
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
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
Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）A、The show ip eigrp neighbors command on R1 lists the revised Hello timerB、The show ip eigrp interfaces command on R1 lists the revised Hello timerC、The R1 - R2 neighborship fails due to Hello timer mismatcHD、The show ip eigrp interfaces detail command on R1 lists the revised Hello timer
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
Rout er R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four other working OSPF routers in that subnet. R1 is neither the designated router (DR) nor backup DR (BDR). OSPF is working correctly on all five routers. Which of the following is true on R1?（）A、The show ip ospf neighbors command lists two neighbors off Fa0/0.B、The show ip ospf neighbors command lists four neighbors off Fa0/0.C、The show ip ospf neighbors command lists two neighbors off Fa0/0 in the FULL state.D、The show ip ospf neighbors command lists two neighbors off Fa0/0 in the DISCO state.
R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）A、R1 loses and then reestablishes neighborships with all neighbors.B、R1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.C、1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).D、R1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).
单选题R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）AR1 loses and then reestablishes neighborships with all neighbors.BR1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.C1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).DR1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).
单选题An engineer has added the following configuration snippet to an implementation planning document. The configuration will be added to Router R1, whose Fa0/0 interface connects to a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors with each of her. Assuming the snippet shows all commands on R1 related to EIGRP authentication, which answer lists an appropriate comment to be made during the implementation plan peer review?（） key chain fred key 3 key - string whehew interface fa0/0 ip authenticat ion key - chain eigrp 9 fredAThe configuration is missing one authentication - related configuration commandBThe configuration is missing two authentication - related configuration commandsCAuthentication type 9 is not supported; type 5 should be u sed insteaDDThe key numbers must begin with key 1, so change the key 3 command to key 1
多选题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?（）Aframe - relay map commands on R3 - R10 referencing the other routers in this groupBNine OSPF neighbor commands on each routerCNine OSPF neighbor commands on R1 and R2, with only two such commands on R3 - R10DR1 and R2 with ip ospf prio rity 1 commands to ensure they become DR and BDRER3 - R10 with ip ospf priority 0 commands to ensure they do not become DR or BDR
多选题Rout er R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four other working OSPF routers in that subnet. R1 is neither the designated router (DR) nor backup DR (BDR). OSPF is working correctly on all five routers. Which of the following is true on R1?（）AThe show ip ospf neighbors command lists two neighbors off Fa0/0.BThe show ip ospf neighbors command lists four neighbors off Fa0/0.CThe show ip ospf neighbors command lists two neighbors off Fa0/0 in the FULL state.DThe show ip ospf neighbors command lists two neighbors off Fa0/0 in the DISCO state.
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
单选题Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）AThe show ip eigrp neighbors command on R1 lists the revised Hello timerBThe show ip eigrp interfaces command on R1 lists the revised Hello timerCThe R1 - R2 neighborship fails due to Hello timer mismatcHDThe show ip eigrp interfaces detail command on R1 lists the revised Hello timer