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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

题目

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

相似考题

1.Part of the signature of the String class is:class String {....};Other part of signature and implementation is completed by you.

2.You have received a default route through BGP from your ISP and you want to redistribute it into OSPF.Which mehtod will accomplish this?()A. Apply an export policy to OSPF that exports the default routeB. Apply an import policy to OSPF that imports the default routeC. Apply the default-network command to OSPFD. Apply the redistribute-igp command to BGP

3.Refer to the exhibit. ROUTE.com is planning to implement a new secure OSPF network to support traffic between clients on the 172.16.10.0/24 network and the file server on th e 172.16.20./24 network. You have been asked to review the implementation plan for the OSPF project. Which statement about the plan is true?（）A. It is complete as written.B. It should include a task that shuts down all unused interfaces.C. It sho uld include tasks that enable and verify OSPF authentication.D. It should include a task that establishes a file transfer baseline before and after the configuration is changed.

4.Which two items should you know when configuring OSPF to dynamically learn routes? ()(Choose two.)A. OSPF area IDB. OSPF neighbor addressC. OSPF loopback addressD. OSPF authentication type

更多“You have completed an OSPF implementation, and you are verifying OSPF operation. During th ”相关问题

  • 第1题：

    Refer to the exhibits. You are verifying your OSPF implementation, and it does not seem to be functioning properly. What can you conclude from the exhibit and the show running - configuration command output? （）

    A. The OSPF areas are not configured correctly.

    B. The wildcard masks for the 10.x .x.x networks are incorrect.

    C. The 172.16.x.x networks need to be connected to area 0 using virtual links.

    D. The 172.16.x.x networks are discontiguous. OSPF is automatically summarizing them to 172.16.0.0/16 and data is being "black holed."

    E. There is not enough information to make a determination.


    参考答案：A

  • 第2题：

    When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?()

    A. OSPF process ID

    B. OSPF router ID

    C. OSPF network type

    D. OSPF memory usage

    E. OSPF CPU utilization

    F. OSPF stub area configurations


    参考答案：B

  • 第3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

  • 第4题：

    When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?（）

    • A、OSPF process ID
    • B、OSPF router ID
    • C、OSPF network type
    • D、OSPF memory usage
    • E、OSPF CPU utilization
    • F、OSPF stub area configurations

    正确答案:B

  • 第5题：

    Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part？ （）

    • A、EIGRP will not be accepted when configured on the actual RIPv2 routers.
    • B、OSPF will no longer be used in the routing table， because you only have EIGRP internal routes running.
    • C、OSPF will no longer be used in the routing table， because you only have EIGRP external routes running.
    • D、RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP external routes running.
    • E、RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP internal routes running.
    • F、OSPF database will have RIPv2 routes.

    正确答案:B,E

  • 第6题：

    You have implemented mutual route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one o f the OSPF routers within the OSPF routing domain, you are seeing some, but not all of the expected routes. Which two things should you verify to troubleshoot this problem?（）

    • A、The border router is using a proper seed metric for OSPF
    • B、The border ro uter is using a proper seed metric for EIGRP
    • C、The administrative distance is set for OSPF and EIGRP
    • D、The missing EIGRP routes are present in the routing table of the border router
    • E、The subnet keyword on the border router in the redistribute EIG RP command

    正确答案:D,E

  • 第7题：

    You have a multi-area OSPF network and you’re concerned because one of the sites is havingconnectivity problem to resources in a different area. Which IOS privileged mode command wouldyou enter to confirm that your network：  （A） has a path to its ABR，  （B） has a path to its ASBR， and  （C）the SPF calculation is functional？（）

    • A、show ip protocols
    • B、show running-config
    • C、show ip ospf neighbor
    • D、show ip ospf border-routers

    正确答案:D

  • 第8题：

    You have implemented mutua l route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one of the EIGRP routers within the EIGRP routing domain, you are seeing some, but not all of the expected routes. What should you verify to troubleshoot this problem?（）

    • A、The border router is using a proper seed metric for OSPF
    • B、The border router is using a proper seed metric for EIGRP
    • C、The administrative distance is set for OSPF and EIGRP
    • D、The missing OSPF routes are present in the routing  table of the border router
    • E、The subnet keyword on the border router in the redistribute OSPF command

    正确答案:D

  • 第9题：

    when you use LSA type 4 in OSPF environment？


    正确答案: Type 4 LSAs （ASBR Summary LSAs） are originated by Area Border Routers to describe Autonomous System Boundary Routers outside the area.
    When external route is inject into the ospf domain， ASBR Summary LSA is used byABR to advertise ASBRs external to an area.

  • 第10题：

    单选题
    When an OSPF design is planned, which implementation can help a router not have memory resource issues?（）
    A

    Have a backbone area (area 0) with 40 routers and use default routes to reach external destinations

    B

    Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPF

    C

    Have less OSPF areas to reduce the need for interarea route summarizations

    D

    Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    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： D
    解析： 暂无解析

  • 第12题：

    单选题
    You have received a default route through BGP from your ISP and you want to redistribute it into OSPF.Which mehtod will accomplish this?（）
    A

    Apply an export policy to OSPF that exports the default route

    B

    Apply an import policy to OSPF that imports the default route

    C

    Apply the default-network command to OSPF

    D

    Apply the redistribute-igp command to BGP


    正确答案： B
    解析： 暂无解析

  • 第13题：

    You have implemented mutual route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one o f the OSPF routers within the OSPF routing domain, you are seeing some, but not all of the expected routes.Which two things should you verify to troubleshoot this problem?（）

    A. The border router is using a proper seed metric for OSPF

    B. The border ro uter is using a proper seed metric for EIGRP

    C. The administrative distance is set for OSPF and EIGRP

    D. The missing EIGRP routes are present in the routing table of the border router

    E. The subnet keyword on the border router in the redistribute EIG RP command


    参考答案：D, E

  • 第14题：

    When an OSPF design is planned, which implementation can help a router not have memory resource issues?()

    A. Have a backbone area (area 0) with 40 routers and use default routes to reach external destinations

    B. Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPF

    C. Have less OSPF areas to reduce the need for interarea route summarizations

    D. Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2


    参考答案：A

  • 第15题：

    When an OSPF design is planned, which implementation can help a router not have memory resource issues?（）

    • A、Have a backbone area (area 0) with 40 routers and use default routes to reach external destinations
    • B、Have a backbo ne area (area 0) with 4 routers and 30,000 external routes injected into OSPF
    • C、Have less OSPF areas to reduce the need for interarea route summarizations
    • D、Have multiple OSPF processes on each OSPF router. Example, router ospf 1, router ospf 2

    正确答案:A

  • 第16题：

    When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）

    • A、All OSPF routers in stubby areas can have type 3 LSAs in their database.
    • B、All OSPF routers in stubby areas can have type 7 LSAs in their database.
    • C、All OSPF routers in totally stubby areas can have type 3 LSAs in  their database.
    • D、All OSPF routers in totally stubby areas can have type 7 LSAs in their database.
    • E、All OSPF routers in NSSA areas can have type 3 LSAs in their database.
    • F、All OSPF routers in NSSA areas can have type 7 LSAs in their database.

    正确答案:A,E,F

  • 第17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18题：

    Which two items should you know when configuring OSPF to dynamically learn routes? （）(Choose two.)

    • A、OSPF area ID
    • B、OSPF neighbor address
    • C、OSPF loopback address
    • D、OSPF authentication type

    正确答案:A,D

  • 第19题：

    The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart，which mechanism is used tocontinue forwarding packets during a switchover？（）

    • A、Reverse Path Forwarding
    • B、Hardware-based forwarding
    • C、UDP forwarding
    • D、Layer 2 Forwarding

    正确答案:B

  • 第20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21题：

    OSPF is enabled on router A. You execute the following command on router A and receive theaccompanying output:RouterA#ping 224.0.0.5 repeat1Type escape sequence to abort.Sending 1, 1 00 - byte ICMP Echos to 224.0.0.5, timeout is 2 seconds:Reply to request 0 from 10.100.100.1, 4 ms10.100.100.1 is the IP address of a loopback interface on router A. What can you conclude about router A?（）

    • A、Only the router A loopback interface is parti cipating in the OSPF routing process
    • B、None of the router A interfaces are participating in the OSPF routing process
    • C、Router A is using the loopback interface IP address as its OSPF router ID
    • D、Router A does not have any reachable OSPF neighbors

    正确答案:D

  • 第22题：

    单选题
    Your MPLS implementation is currently using internal backdoor links. What can you do to minimize the impact of having these links?（）
    A

    use BGP as the CE-PE routing protocol

    B

    use OSPF as the CE-PE routing protocol

    C

    use EIGRP as the CE-PE routing protocol

    D

    use the SP to redistribute routes as external routes for OSPF and EIGRP

    E

    use route redistribution at each location to ensure external routes are imported into the IGP


    正确答案： E
    解析： 暂无解析

  • 第23题：

    单选题
    You have implemented mutua l route redistribution between OSPF and EIGRP on a border router. When checking the routing table on one of the EIGRP routers within the EIGRP routing domain, you are seeing some, but not all of the expected routes. What should you verify to troubleshoot this problem?（）
    A

    The border router is using a proper seed metric for OSPF

    B

    The border router is using a proper seed metric for EIGRP

    C

    The administrative distance is set for OSPF and EIGRP

    D

    The missing OSPF routes are present in the routing  table of the border router

    E

    The subnet keyword on the border router in the redistribute OSPF command


    正确答案： D
    解析： 暂无解析

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