单选题Routers R1 and R2 are configured for HSRP as shown below： Router R1： interface ethernet 0 ip address 20.6.2.1 255.255.255.0 standby 35 ip 20.6.2.21 standby 35 priority 100 interface ethernet 1 ip address 20.6.1.1.2 255.255.255.0 standby 34 ip 20.6.1.21 Router R2： interface ethernet 0 ip address 20.6.2.2 255.255.255.0 standby 35 ip 20.6.2.21 interface ethernet 1 ip address 20.6.1.1.1 255.255.255.0 standby 34 ip 20.6.1.21 standby 34 priority 100 You have configured the routers R1 R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）Aphysical layer issuesBno spanning tree loopsCuse of non-default HSRP timersDfailure to set the command standby 35 preempt
单选题
Routers R1 and R2 are configured for HSRP as shown below： Router R1： interface ethernet 0 ip address 20.6.2.1 255.255.255.0 standby 35 ip 20.6.2.21 standby 35 priority 100 interface ethernet 1 ip address 20.6.1.1.2 255.255.255.0 standby 34 ip 20.6.1.21 Router R2： interface ethernet 0 ip address 20.6.2.2 255.255.255.0 standby 35 ip 20.6.2.21 interface ethernet 1 ip address 20.6.1.1.1 255.255.255.0 standby 34 ip 20.6.1.21 standby 34 priority 100 You have configured the routers R1 & R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）
A
physical layer issues
B
no spanning tree loops
C
use of non-default HSRP timers
D
failure to set the command standby 35 preempt
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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.
Refer to the exhibit. All routers have Protocol Independent Multicast (PIM) enabled interfaces. On the basis of the configuration provided on routers R1 and R2, which router will take on the func tion of rendezvous point (RP) for the multicast network? （）A. both routers R1 and R2B. router R1C. router R2D. none of the routers since they are not configured with static RP
Refer to the exhibit. Autonomous systems 200 and 300 have EBGP sessions established with their directly connected routers in au tonomous system 100. IGP has been configured on all routers in autonomous system 100 and they successfully exchange routing updates. Traffic originated in autonomous system 200 cannot reach the destination autonomous system 300. What configuration shoul d be done on the routers in autonomous system 100 in order for the traffic coming from autonomous system 200 to be forwarded to autonomous system 300?（）A. IBGP session must be established between routers R1 R2 and R2 R3, and the synchronization must be turned off.B. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned on.C. IBGP session must be established between routers R1 R2 and R2 R3, and the synchronization must be turned on.D. IBGP session mu st be established between routers R1 and R3, and the synchronization must be turned off.E. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned off.F. IBGP session must be established between routers R1 and R3, and the synchronization must be turned on.
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
Router R1 is configured as shown below:router eigrp 100network 10.0.0.0eigrp stubBased on the information shown above, which two types of routes will be advertised?() A. Receive - onlyB. StubC. StaticD. SummaryE. ConnectedF. Dynamic
Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2.What could be the cause of the problem?() A. The no auto - summary command has not been issued under the EIGRP process on both routers.B. Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24.C. EIGRP cannot exchange routing updates with a neighbor‘s router interface that is configured with tw o IP addresses.D. EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.
S0/0 on R1 is configured as a multipoint interface to communicate with R2 and R3 in the hub-and-spoke Frame Relay topology shown in the exhibit. Originally, static routes were configured between these routers to successfully route traffic between the attached networks. What will need to be done in order to use RIPv2 in place of the static routes?（）A.Configure the no ip subnet-zero command on R1, R2, and R3.B.Dynamic routing protocols such as RIPv2 cannot be used across Frame Relay networks.C.Configure the S0/0 interface on R1 as two subinterfaces and configure point-to-point links to R2 and R3.D.Change the 172.16.2.0/25 and 172.16.2.128/25 subnetworks so that at least two bits are borrowed from the last octet.E.Change the network address configuration to eliminate the discontiguous 172.16.2.0/25 and 172.16.2.128/25 subnetwork.
Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub connected command. Which of the following is true as a result？（）A、R1 can learn EIGRP routes from R2, but R2 cannot learn EIGRP routes from R1B、R1 can send IP packets to R2, but R2 cannot send IP packets to R1C、R2 no longer learns EIGRP routes from R1 for routes not connected to R1D、R1 no longer replies to R2's Query messagesE、R2n o longer sends to R1 Query messages
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.
Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure. Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （）A、 Load sharing with HSRP is achieved by creating multiple subinterfaces on the HSRP routers. B、 Routers configured for HSRP can belong to multiple groups and multiple VLANs.C、 Load sharing with HSRP is achieved by creating HSRP groups on the HSRP routers.D、 All routers configured for HSRP load balancing must be configured with the same priority. E、 Routers configured for HSRP must belong to only one group per HSRP interface.
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.
Router R1 and R2 are both configured for HSRP. Which two statements about the HSRP priorities of these two routers are true？（）A、 To assign the HSRP router priority in a standby group， the standby group-number priority priority-value global configuration command must be used.B、 The default priority of a router is zero （0）.C、 The no standby priority command assigns a priority of 100 to the router.D、 Assuming that preempting has also been configured， the router with the lowest priority in an HSRP group would become the active router.E、 When two routers in an HSRP standby group are configured with identical priorities， the router with the highest configured IP address will become the active router.
Router R1 is configured for HSRP. Which of the following are valid HSRP states on R1？ （）A、 InitB、 IdleC、 ActiveD、 StandbyE、 EstablishedF、 Backup
Assume two routers on the same subnet， R1 and R2， both configured for HSRP. R1 has a priority of 120.Which of the following HSRP interface configurations will always result in the R2 becoming the primary？（）A、standby 1 priority 110B、standby 1 priority 120C、standby 1 priority 130D、standby 1 priority 110 preemptE、standby 1 priority 120 preemptF、standby 1 priority 130 preempt
R1 and R2 exchange HSRP between each other in the Company network. In which three HSRP states do routers send hello messages？（）A、 LearnB、 SpeakC、 StandbyD、 ListenE、 ActiveF、 Remove
Router R1 is configured as shown below: router eigrp 100 network 10.0.0.0 eigrp stub Based on the information shown above, which two types of routes will be advertised？（）A、Receive - onlyB、StubC、StaticD、SummaryE、ConnectedF、Dynamic
多选题Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem?（）AAll of the routers need to be configured for backbone Area 1.BR1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.CA static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.DThe hello and dead interval timers are not set to the same values on R1 and R3.EEIGRP is also configured on these routers with a lower administrative distance.FR1 and R3 are configured in different areas.
多选题When HSRP is configured on a network, which two of these items are provided, which are shared between the routers that run HSRP ?（） (choose two)AShared single interfaceBIP AddressCTCP-based hello packetsDMAC address
多选题Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure. Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （）ALoad sharing with HSRP is achieved by creating multiple subinterfaces on the HSRP routers.BRouters configured for HSRP can belong to multiple groups and multiple VLANs.CLoad sharing with HSRP is achieved by creating HSRP groups on the HSRP routers.DAll routers configured for HSRP load balancing must be configured with the same priority.ERouters configured for HSRP must belong to only one group per HSRP interface.
单选题Routers R1 and R2 are configured for HSRP as shown below： Router R1： interface ethernet 0 ip address 20.6.2.1 255.255.255.0 standby 35 ip 20.6.2.21 standby 35 priority 100 interface ethernet 1 ip address 20.6.1.1.2 255.255.255.0 standby 34 ip 20.6.1.21 Router R2： interface ethernet 0 ip address 20.6.2.2 255.255.255.0 standby 35 ip 20.6.2.21 interface ethernet 1 ip address 20.6.1.1.1 255.255.255.0 standby 34 ip 20.6.1.21 standby 34 priority 100 You have configured the routers R1 R2 with HSRP. While debugging router R2 you notice very frequent HSRP group state transitions. What is the most likely cause of this？ （）A physical layer issuesB no spanning tree loopsC use of non-default HSRP timersD failure to set the command standby 35 preempt
单选题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？（）ATraffic forwarded from R2 to or through R1 will continue to be forwarded based on the forwarding table state at the time of the reload.BR2 will continue to forward traffic to R1， but R1 will drop the traffic because its neighbor adjacency with R2 has failed.CR2 will continue forwarding traffic to and through R1， but R1 will drop this traffic because it is not capable of maintaining its forwarding state.DAll the traffic R2 is forwarding to or through R1 will be dropped while OSPF rebuilds its neighbor adjacency and forwarding tables.
多选题Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub connected command. Which of the following is true as a result？（）AR1 can learn EIGRP routes from R2, but R2 cannot learn EIGRP routes from R1BR1 can send IP packets to R2, but R2 cannot send IP packets to R1CR2 no longer learns EIGRP routes from R1 for routes not connected to R1DR1 no longer replies to R2's Query messagesER2n o longer sends to R1 Query messages
单选题Routers R1 and R2 are configured for HSRP as shown below： Router R1： interface ethernet 0 ip address 20.6.2.1 255.255.255.0 standby 35 ip 20.6.2.21 standby 35 priority 100 interface ethernet 1 ip address 20.6.1.1.2 255.255.255.0 standby 34 ip 20.6.1.21 Router R2： interface ethernet 0 ip address 20.6.2.2 255.255.255.0 standby 35 ip 20.6.2.21 interface ethernet 1 ip address 20.6.1.1.1 255.255.255.0 standby 34 ip 20.6.1.21 standby 34 priority 100 You have configured the routers R1 R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）Aphysical layer issuesBno spanning tree loopsCuse of non-default HSRP timersDfailure to set the command standby 35 preempt
多选题Router R1 is configured as shown below: router eigrp 100 network 10.0.0.0 eigrp stub Based on the information shown above, which two types of routes will be advertised？（）AReceive - onlyBStubCStaticDSummaryEConnectedFDynamic
多选题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?（）AUsing an iBGP mesh inside the Enterprise coreBConfiguring default routes in the Enterprise pointing to both R1 and R2CRedistributing BGP routes into the Enterprise IGPDTunneling the packets for the i BGP connection between R1 and R2
多选题R1 and R2 exchange HSRP between each other in the Company network. In which three HSRP states do routers send hello messages？（）ALearnBSpeakCStandbyDListenEActiveFRemove
多选题Router R1 is configured for HSRP. Which of the following are valid HSRP states on R1？ （）AInitBIdleCActiveDStandbyEEstablishedFBackup