单选题Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）A all routers on a linkB all routers in an areaC all external OSPF peersD all routers in an OSPF domain

题目
单选题
Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）
A

all routers on a link

B

all routers in an area

C

all external OSPF peers

D

all routers in an OSPF domain

相似考题

1.Which routers must be configured with the same authentication string when configuring OSPFauthentication?()A. all routers on a linkB. all routers in an areaC. all external OSPF peersD. all routers in an OSPF domain

2.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

3.Routers R1, R2, R3, and R4 connect to the same 10.10.10.0/24 LAN- based subnet. OSPF is fully working in the subnet. Later, R5, whose OSPF priority is higher than the other four routers, joins the subnet.Which of the following are true about the OSPF database exchange process over this subnet at this point?（）A. R5 will send its DD, LSR, and LSU packets to the 224.0.0.5 all - DR - routers multicast address.B. R5 will send its DD, LSR, and LSU pack ets to the 224.0.0.6 all - DR - routers multicast address.C. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.6 all- SPF - routers multicast address.D. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU pa ckets to the 224.0.0.5 all- SPF - routers multicast address.

4.if all OSPF routers on a broadcast network have the same OSPF priority, which parameter is used to determine the new BDR at the time of a DR failure?()A.AB.BC.CD.D

参考答案和解析
正确答案： A
解析： 暂无解析
更多“单选题Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）A all routers on a linkB all routers in an areaC all external OSPF peersD all routers in an OSPF domain”相关问题

  • 第1题：

    Which of the following is true concerning Frame Relay multipoint subinterfaces?()

    A. An IP address is required on the physical interface of the central router.

    B. All routers are required to be fully meshed.

    C. All routers must be in the same subnet to forward routing updates and broadcasts.

    D. Multipoint is the default configuration for Frame Relay subinterfaces.


    参考答案：C

  • 第2题：

    What are two characteristics of the OSPF process identifier?()

    A. It is needed to identify a unique instance of an OSPF database.

    B. It is an optional parameter only necessary if multiple OSPF processes are used.

    C. It is locally significant.

    D. It is globally insignificant

    E. All routers in the same OSPF area must have the same process ID to exchange routing information.


    参考答案：A, C

  • 第3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

  • 第4题：

    Which of the following describe the process identifier that is used to run OSPF on a router?()

    A. It is locally significant.

    B. It is globally significant.

    C. It is needed to identify a unique instance of an OSPF database.

    D. It is an optional parameter required only if multiple OSPF processes are running on the router.

    E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.


    参考答案：A, C

  • 第5题：

    Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)()。

    A.It is locally significant

    B.It is globally significant

    C.It is needed to identify a unique instance of an OSPF database

    D.It is an optional parameter required only if multiple OSPF processes are running on the router

    E.All routers in the same OSPF area must have the same process ID if they are to exchange routing information


    参考答案：A, C

  • 第6题：

    Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。

    • A、It is locally significant
    • B、It is globally significant
    • C、It is needed to identify a unique instance of an OSPF database
    • D、It is an optional parameter required only if multiple OSPF processes are running on the router
    • E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information

    正确答案:A,C

  • 第7题：

    What are two characteristics of the OSPF process identifier?（）

    • A、It is needed to identify a unique instance of an OSPF database.
    • B、It is an optional parameter only necessary if multiple OSPF processes are used.
    • C、It is locally significant.
    • D、It is globally insignificant
    • E、All routers in the same OSPF area must have the same process ID to exchange routing information.

    正确答案:A,C

  • 第8题：

    An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）

    • A、Interfaces will automatically detect and build adjacencies with neighbor routers
    • B、DR and BDR elections will not occur
    • C、DR and BDR elections will occur
    • D、The neighbor command is required to build adjacencies
    • E、All routers must be configured in a fully meshed topology with all other routers

    正确答案:C,D

  • 第9题：

    If all OSPF routers on a broadcast network have the same OSPF priority， what parameter is used to determine the new BDR at the time of a DR failure？（）

    • A、 area ID
    • B、 router ID
    • C、 loopback address
    • D、 IP address of interface on broadcast network

    正确答案:B

  • 第10题：

    Which routers must be configured with the same authentication string when configuring OSPF authentication？（）

    • A、all routers on a link
    • B、all routers in an area
    • C、all external OSPF peers
    • D、all routers in an OSPF domain

    正确答案:A

  • 第11题：

    单选题
    If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?（）
    A

    area ID

    B

    router ID

    C

    loopback address

    D

    IP address of interface on broadcast network


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Which routers must be configured with the same authentication string when configuring OSPF authentication？（）
    A

    all routers on a link

    B

    all routers in an area

    C

    all external OSPF peers

    D

    all routers in an OSPF domain


    正确答案： A
    解析： 暂无解析

  • 第13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.


    参考答案：A, E, F

  • 第14题：

    An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?()

    A. Interfaces will automatically detect and build adjacencies with neighbor routers

    B. DR and BDR elections will not occur

    C. DR and BDR elections will occur

    D. The neighbor command is required to build adjacencies

    E. All routers must be configured in a fully meshed topology with all other routers


    参考答案：C, D

  • 第15题：

    Refer to the diagram. Which OSPF configuration command is required to configure Area 3 a s atotally stubby area?()

    A. On the ABR router ospf 10 area 3 stub

    B. On all Area 3 routers router ospf 10 area 3 stub

    C. On all Area 3 routers router ospf 10 area 3 stub no - summary

    D. On the ABR router ospf 10 area 3 nssa

    E. On the ABR rou ter ospf 10 area 3 stub no - summary


    参考答案：E

  • 第16题：

    What are three characteristics of the OSPF routing protocol?()

    A. It converges quickly.

    B. OSPF is a classful routing protocol.

    C. It uses cost to determine the best route.

    D. It uses the DUAL algorithm to determine the best route.

    E. OSPF routers send the complete routing table to all directly attached routers.

    F. OSPF routers discover neighbors before exchanging routing information.


    参考答案：A, C, F

  • 第17题：

    Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)（）

    • A、It is locally significant.
    • B、It is globally significant.
    • C、It is needed to identify a unique instance of an OSPF database.
    • D、It is an optional parameter required only if multiple OSPF processes are running on the router.
    • E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information.

    正确答案:A,C

  • 第18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）？ （）

    • 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.

    正确答案:B,C

  • 第19题：

    Which one of the following answer choices below is true regarding the OSPF topology database?（）

    • A、All entries in the topology database will be included on each router.
    • B、All routers in the same OSPF area will have one topology database.
    • C、The Dijkstra algorithm is used in the creation of the topology database.
    • D、LSA packets are used to update and maintain the topology database.

    正确答案:D

  • 第20题：

    The network consists of a series of routers that are all configured for IBGP. Which one of thefollowing IBGP characteristics is true？（）

    • A、The IBGP routers must always be fully meshed
    • B、The IBGP routers can be in a different AS
    • C、The IBGP routers must be directly connected
    • D、The IBGP routers do not need to be directly connected
    • E、None of the other alternatives apply are true

    正确答案:D

  • 第21题：

    Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）

    • A、all routers on a link
    • B、all routers in an area
    • C、all external OSPF peers
    • D、all routers in an OSPF domain

    正确答案:A

  • 第22题：

    单选题
    Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）
    A

    all routers on a link

    B

    all routers in an area

    C

    all external OSPF peers

    D

    all routers in an OSPF domain


    正确答案： B
    解析： 暂无解析

  • 第23题：

    多选题
    An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）
    A

    Interfaces will automatically detect and build adjacencies with neighbor routers

    B

    DR and BDR elections will not occur

    C

    DR and BDR elections will occur

    D

    The neighbor command is required to build adjacencies

    E

    All routers must be configured in a fully meshed topology with all other routers


    正确答案： D,B
    解析： 暂无解析

  • 第24题：

    单选题
    The network consists of a series of routers that are all configured for IBGP. Which one of thefollowing IBGP characteristics is true？（）
    A

    The IBGP routers must always be fully meshed

    B

    The IBGP routers can be in a different AS

    C

    The IBGP routers must be directly connected

    D

    The IBGP routers do not need to be directly connected

    E

    None of the other alternatives apply are true


    正确答案： C
    解析： 暂无解析

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