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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 o
题目
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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更多“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? () ”相关问题
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第1题：
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 domain
B. the routes originating from the OSPF stub area
C. all OSPF inter and intra - area routes
D. all routes originating from RIP and OSPF routing domains
参考答案：A
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第2题：
Refer to the exhibit. Two routers are connected by Frame Relay and are running OSPF bet ween them. Each router has been configured with the appropriate network statements under router ospf 1, but the routers are not forming an adjacency. Which of the following three commands could be configured on each router to correct this problem?（）
A. RouterC(config - if)#ip ospf network broadcast RouterD(config - if)#ip ospf network broadcast
B. RouterC(config - if)#ip ospf network point - to - point RouterD(config - if)#ip ospf network point - to - point
C. RouterC(config - router)#neighbor 10.100. 100.4 RouterD(config - router)#neighbor 10.100.100.3
D. RouterC(config - router)#neighbor 10.255.255.254 RouterD(config - router)#neighbor 10.255.255.253
参考答案：A, B, D
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第3题：
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 state
B.The NProuter serial0/0 interface has the OSPF dead timer set to 10 seconds
C.The NProuter serial0/0 interface has been configured with an OSPF network type of "pointtopoint"
D.The 10.1.1.1 and 10.1.1.2 routers are not using the default OSPF dead and hello timers setting
E.The "Mismatched" error is caus ed by the expiration of the OSPF timers
参考答案：E
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第4题：
Refer to the exhibit. Routers R1 and R2 have been configured to operate with OSPF. Routers R1 and R3 have been configured to operate with RIP. After configuring the redistribution between OSPF a nd RIP on R1, no OSPF routes are distributed into RIP. What should be done to correct this problem? （）
A. The redistribution command should be reentered with the match route - type parameter included.
B. The redistribution command should be reentered wit h the route - map map - tag parameter included.
C. The redistribution command should be reentered with the metric metric - value parameter included.
D. Routes will first need to be distributed into another protocol, and then into RIP.
参考答案：C
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第5题：
Refer to the exhibit. Which statement is true about the configuration? ()
A. RTA will not establish an OSPF adjacency w ith RTB
B. RTA will send OSPF hello packets, but will not send OSPF updates
C. RTA will not accept OSPF hello packets from RTB
D. RTA will send OSPF updates, but will not establish an adjacency with RTB
参考答案：A
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第6题：
Refer to the output. What IOS command produces this output?()
A. show i p ospf
B. show ip ospf interface
C. show ipv6 ospf interface
D. show ipv6 ospf
参考答案：D
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第7题：
Refer to the exhibit. EIGRP is configured on all routers in the network. On a basis of the show ip eigrp topology output provided, what conclusion can be deri ved? ()
A.Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out inquiring for a second successor to network 10.6.1.0/24
B.Router R1 can send traffic destined for network 10.6.1.0/24 out of interface FastEthernet0/0
C.Router R1 is waiting for a reply from the neighbor 10.1.2.1 to the hello message sent out before it declares the neighbor unreachable
D.Router R1 is waiting for a reply from the neighbor 10.1.2.1 in response to the query sent out about network 10 .6.1.0/24
参考答案：D
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第8题：
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?（）
A. The OSPF area is not configured properly.
B. The priority on R1 should be set higher.
C. The cost on R1 should be set higher.
D. The hello and dead timers are not configured properly.
E. A backup designated router needs to be added to the network.
F. The OSPF process ID numbers must match.
参考答案：D
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第9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
正确答案:B -
第10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?（）
- 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.
正确答案:B,C -
第11题：
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.
正确答案： B,F解析： 暂无解析 -
第12题：
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.
正确答案： C,A解析： 暂无解析 -
第13题：
Refer to the exhibit. Which two Cisco IOS commands on R2 would verify its OSPF neighbor relationships?()
A.show ip ospf
B.show ip ospf interface
C.show ip ospf neighbor
D.show ip ospf database
E.show ip ospf statistics
F.show running - config begin router ospf
参考答案：B, C
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第14题：
Refer to the exhibit. You have completed an OSPF implementation, and you are verifying OSPF operation. You notice that router A and router B are stuck in the two - way state. From the show ip ospf interface command output, what is the cause of this issue?（）
A. All OSPF implementations must have at le ast one interface in area 0.
B. You are attempting to run in the broadcast mode over an NBMA interface.
C. Both routers are configured to function as a BDR; therefore, there is no DR router.
D. Someone has changed the OSPF router ID; therefore you must clear the OSPF process.
E. The OSPF priority is set to 0 on both routers; therefore neither can become the DR.
参考答案：E
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第15题：
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.
参考答案：C
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第16题：
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 R2
B. router R1
C. router R2
D. none of the routers since they are not configured with static RP
参考答案：C
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第17题：
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 interface
B. The ip ospf network non -broadcast command should be configured on each Frame Relay interface
C. Th e ip ospf priority value on the spoke routers should be set to 0
D. The ip ospf priority value on the hub router should be set to 0
E. The neighbor command should be configured under the OSPF routing process on all routers
参考答案：C
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第18题：
On your OSPF network, routers TK1 and TK2 belong to the same Ethernet network. However, they are unable to establish an adjacency over this link. While troubleshooting this problem, you issue the "show ip ospf interface Ethernet 0"command on each router. The output from these commands is displayed below:What is the underlying cause of the routers failing to become adjacent?（）
A. The OSPF area is misconfigured.
B. The priority on TK2 should be set lower.
C. The cost on TK2 should be set lower.
D. The hello and dead timers are misconfigured.
E. You need to add a backup designated router to the network.
F. The OSPF process ID numbers do not match.
参考答案：D
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第19题：
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.
参考答案：D
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第20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？（）
- 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.
正确答案:A -
第21题：
You have just completed an OSPF implementation. While executing your verification plan, you determine that R1 is not able to establish full OSPF adjacency with R2. The show ip ospf neighbor comman d output on R1 shows that R2 is stuck in the INIT state. What could be the cause of this problem?（）
- A、DR and BDR election errors between R1 and R2.
- B、The R2 router has not received the OSPF hello packets from the R1 router.
- C、Mismatched interface ma ximum transmission unit (MTU) configuration between the R1 and R2.
- D、Mismatched OSPF hello interval configuration between the R1 and R2
- E、Corrupted LSAs exchanges between the R1 and R2.
正确答案:B -
第22题：
Which CLI command displays all OSPF LSAs received by the local router？（）
- A、show ospf neighbor
- B、show ospf database
- C、show ospf interface
- D、show ospf adjacency
正确答案:B -
第23题：
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 timer
BThe show ip ospf interfac e brief command on R1 lists the revised Hello timer
CThe R1 - R2 neighborship fails due to Hello timer mismatcH
DThe show ip ospf interface command on R1 lists the revised Hello timer
正确答案： B,C解析： 暂无解析