When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）A、OSPF hello interval is 5 secondsB、OSPF hello interval is 1 secondC、OSPF dead interval is 1 secondD、OSPF dead interval is 5 s

题目

When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）

  • A、OSPF hello interval is 5 seconds
  • B、OSPF hello interval is 1 second
  • C、OSPF dead interval is 1 second
  • D、OSPF dead interval is 5 seconds
  • E、OSPF dead interval is 20 seconds
  • F、OSPF hello interval is 0.2 second
相似考题

1.Which of the following settings do not prevent two potential OSPF neighbors from becoming neighbors?()A. The interface used to connect to that neighbor being passive in the OSPF processB. Duplicate OSPF router IDsC. Mismatched dead timersD. IP addr esses of 10.1.1.1/24 and 10.2.2.2/24E. Mismatched OSPF process IDs

2.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 timerB. The show ip ospf interfac e brief command on R1 lists the revised Hello timerC. The R1 - R2 neighborship fails due to Hello timer mismatcHD. The show ip ospf interface command on R1 lists the revised Hello timer

3.Refer to the exhibit. Which two Cisco IOS commands on R2 would verify its OSPF neighbor relationships?()A.show ip ospfB.show ip ospf interfaceC.show ip ospf neighborD.show ip ospf databaseE.show ip ospf statisticsF.show running - config begin router ospf

4.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

更多“When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）A、OSPF hello interval is 5 secondsB、OSPF hello interval is 1 secondC、OSPF dead interval is 1 secondD、OSPF dead interval is 5 s”相关问题

  • 第1题：

    Which two statements about route redistribution when implementing OSPF are true?()

    A. Routes learned using any IP routing protocol can only be redistributed into non IP routing protocols.

    B. OSPF can import routes learned using EIGRP, RIP, and IS - IS.

    C. OSPF routes cannot be exported into EIGRP, RIP, an d IS - IS.

    D. At the interdomain level, OSPF cannot import routes learned using BGP.

    E. OSPF routes can be exported into BGP.


    参考答案：B, E

  • 第2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

  • 第3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

  • 第4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

  • 第5题：

    What kind of packets does OSPF send to keep up connectivity with its neighboring routers?（）

    • A、SPF packets
    • B、hello packets
    • C、keepalive packets
    • D、dead interval packets
    • E、LSU packets

    正确答案:B

  • 第6题：

    The core of a network has four routers connected in a square design with Gigabit Ethernet links using /30 subnets. The network is used to carry voice traffic and other applications. Convergence time is taking more than expected. Which three actions would you take to improve OSPF convergence time？（）

    • A、Increase MTU of the interfaces to accommodate larger OSPF packets.
    • B、Change the network type to point-to-point on those links.
    • C、Reduce SPF initial timer.
    • D、Increase hello interval to avoid adjacency flapping.
    • E、Enable OSPF

    正确答案:B,C,E

  • 第7题：

    Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). Which two statements best describe the OSPF link - state routing pro tocol?（）

    • A、OSPF sends updates every 10 seconds
    • B、OSPF sends triggered updates when a network change occurs
    • C、When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it  to all OSPF devices using the 224.0.0.6 multicast address
    • D、OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization

    正确答案:B,D

  • 第8题：

    同一链路上的任意两个运行OSPF的路由器想成为邻居，Hello报文中的哪些项必须匹配。（）

    • A、区域标识符AreaID
    • B、接口报文的认证类型与认证密码
    • C、Hello-interval和Dead-interval一致
    • D、路由器ID
    • E、网络类型

    正确答案:A,B,C

  • 第9题：

    What are two Cisco IOS commands that can be used to view neighbor adjacencies?（）

    • A、show ip ospf interfaces
    • B、show ip ospf protocols
    • C、show ip ospf neighbors
    • D、show ip ospf database

    正确答案:A,C

  • 第10题：

    单选题
    Which show command will display only the Type 5 LSAs in the OSPF topology database？（）
    A

    show ip ospf database external

    B

    show ip ospf database nssa - external

    C

    show ip route ospf

    D

    show ip ospf datab ase summary

    E

    show ip route


    正确答案： A
    解析： 暂无解析

  • 第11题：

    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?（）
    A

    ip ospf authentication null

    B

    ip ospf authentication message - digest

    C

    ip ospf authentication -key whatever- it - is

    D

    ip ospf message - digest - key 1 md5 whatever - it - is

    E

    ip ospf md5 1 key whatever - it - is


    正确答案： A,C
    解析： 暂无解析

  • 第12题：

    单选题
    Which statement about OSPF authentication is true？（）
    A

    To enable OSPF authentication in a network， OSPF area 0 authentications must be enabled first

    B

    The payload of OSPF version 3 packets contains no authentication information

    C

    OSPF version 3 supports Advanced Encryption Standard

    D

    OSPF version 3 uses router ID as a key to encrypt OSPF hello packets

    E

    OSPF MD5 authentication uses TCP， and Plan Test authentication uses UDP


    正确答案： E
    解析： 暂无解析

  • 第13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.


    参考答案：B

  • 第14题：

    What kind of packets does OSPF send to keep up connectivity with its neighboring routers?()

    A. SPF packets

    B. hello packets

    C. keepalive packets

    D. dead interval packets

    E. LSU packets


    参考答案：B

  • 第15题：

    What are two Cisco IOS commands that can be used to view neighbor adjacencies?()

    A. show ip ospf interfaces

    B. show ip ospf protocols

    C. show ip ospf neighbors

    D. show ip ospf database


    参考答案：A, C

  • 第16题：

    Which information will the Cisco IOS command show ip ospf rib display？（）

    • A、only the local OSPF routes
    • B、only the OSPF routes installed in the routing table
    • C、only the remotely learned OSPF routes
    • D、all the OSPF routes from the OSPF database that are eligible to be put in the routing table

    正确答案:D

  • 第17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?（）

    • A、ip ospf authentication null
    • B、ip ospf authentication message - digest
    • C、ip ospf authentication -key whatever- it - is
    • D、ip ospf message - digest - key 1 md5 whatever - it - is
    • E、ip ospf md5 1 key whatever - it - is

    正确答案:B,D

  • 第18题：

    Which of the following settings do not prevent two potential OSPF neighbors from becoming neighbors?（）

    • A、The interface used to connect to that neighbor being passive in the OSPF process
    • B、Duplicate OSPF router IDs
    • C、Mismatched dead timers
    • D、IP addr esses of 10.1.1.1/24 and 10.2.2.2/24
    • E、Mismatched OSPF process IDs

    正确答案:E

  • 第19题：

    Which statement about OSPF authentication is true？（）

    • A、To enable OSPF authentication in a network， OSPF area 0 authentications must be enabled first
    • B、The payload of OSPF version 3 packets contains no authentication information
    • C、OSPF version 3 supports Advanced Encryption Standard
    • D、OSPF version 3 uses router ID as a key to encrypt OSPF hello packets
    • E、OSPF MD5 authentication uses TCP， and Plan Test authentication uses UDP

    正确答案:B

  • 第20题：

    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.

    正确答案:D

  • 第21题：

    Which show command will display only the Type 5 LSAs in the OSPF topology database？（）

    • A、show ip ospf database external
    • B、show ip ospf database nssa - external
    • C、show ip route ospf
    • D、show ip ospf datab ase summary
    • E、show ip route

    正确答案:A

  • 第22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?（）
    A

    All of the routers need to be configured for backbone Area 1.

    B

    R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.

    C

    A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.

    D

    The hello and dead interval timers are not set to the same values on R1 and R3.

    E

    EIGRP is also configured on these routers with a lower administrative distance.

    F

    R1 and R3 are configured in different areas.


    正确答案： B,F
    解析： 暂无解析

  • 第23题：

    多选题
    When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）
    A

    OSPF hello interval is 5 seconds

    B

    OSPF hello interval is 1 second

    C

    OSPF dead interval is 1 second

    D

    OSPF dead interval is 5 seconds

    E

    OSPF dead interval is 20 seconds

    F

    OSPF hello interval is 0.2 second


    正确答案： B,A
    解析： 暂无解析

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