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 algori

题目

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.
相似考题

1.When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?()A. The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.C. The LSA is dropped and a message is sent to the transmitting router.D. The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.

2.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.

3.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.

4.Which three statements about OSPF areas are true?()A. Areas introduce a boundary on the link - state updates.B. Areas are logical definitions specific to any given router.C. All routers within an area have the exact link - state database.D. The calculation of the Dijkstra algorithm on a router is limited to changes within an area.E. The area designated router will always have a priority of 0.

更多“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 algori”相关问题

  • 第1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2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3题：

    Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.()

    A. All OSPF networks require the use of multiple areas

    B. Multiple OSPF areas must connect to area 0

    C. Single area OSPF networks must be configured in area 1

    D. Areas can be assigned any number from 0 to 63535

    E. Area 0 is called the backbone area

    F. Each OSPF area need to be configured with a loopback interface


    参考答案：B, E

  • 第4题：

    Which of these statements is true of routing protocols in a hub－and－spoke IPsec VPN topology?()

    A. EIGRP can summarize per interface.

    B. OSPF router databases remain independent.

    C. When they are configured with stubs, EIGRP regularly floods the topology.

    D. OSPF topology decisions are made independent of hierarchy or area.


    参考答案：A

  • 第5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：

    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8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9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10题：

    多选题
    While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）
    A

    Each router has an identical link state database.

    B

    External routes are imported into a separate link state database.

    C

    Syn chronization of link state databases is maintained via floodingo f LSAs.

    D

    Information in the link state database is used to build a routing table by calculating a shortest-path tree.

    E

    By default,link state databases are refreshede very 10 minutes in the absence of topology changes.


    正确答案： E,A
    解析： 暂无解析

  • 第11题：

    多选题
    Which of the following statements describe the characteristic of link state routing protocols?（）
    A

    The exchange of an advertisement is triggered by a change in the network.

    B

    All routers exchange routing tables with each other in a multipoint network.

    C

    Packets are routed based upon the shortest path to the destination.

    D

    Paths are chosen depending on the cost efficiency factor.

    E

    Every router in an OSPF area is capable of representing the entire network topology.

    F

    Only the designated router in an OSPF area can represent the entire network topology.


    正确答案： C,A
    解析： 暂无解析

  • 第12题：

    单选题
    Which of these statements is true of routing protocols in a hub-and-spoke IPsec VPN topology？（）
    A

     EIGRP can summarize per interface.

    B

     OSPF router databases remain independent.

    C

     When they are configured with stubs， EIGRP regularly floods the topology.

    D

     OSPF topology decisions are made independent of hierarchy or area.


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Which of the following statements describe the characteristic of link state routing protocols?()

    A. The exchange of an advertisement is triggered by a change in the network.

    B. All routers exchange routing tables with each other in a multipoint network.

    C. Packets are routed based upon the shortest path to the destination.

    D. Paths are chosen depending on the cost efficiency factor.

    E. Every router in an OSPF area is capable of representing the entire network topology.

    F. Only the designated router in an OSPF area can represent the entire network topology.


    参考答案：A, C, E

  • 第14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


    参考答案：A

  • 第15题：

    What are the characteristic of link state routing protocols?()

    A. The exchange of advertisement is triggered by a change in the network.

    B. All routers exchange routing tables with each other iIn a multipoint network.

    C. Packets are routed based upon the shortest path to the destination.

    D. Paths are chosen depending on the cost efficiency factor.

    E. Every router in an OSPF area is capable of representing the entire network topology.

    F. Only the designated router in an OSPF area can represent the entire network topology.


    参考答案：A, C, E

  • 第16题：

    While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）

    A.Each router has an identical link state database.

    B.External routes are imported into a separate link state database.

    C.Syn chronization of link state databases is maintained via floodingo f LSAs.

    D.Information in the link state database is used to build a routing table by calculating a shortest-path tree.

    E.By default,link state databases are refreshede very 10 minutes in the absence of topology changes.


    参考答案：A, C, D

  • 第17题：

    While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）

    • A、Each router has an identical link state database.
    • B、External routes are imported into a separate link state database.
    • C、Syn chronization of link state databases is maintained via floodingo f LSAs.
    • D、Information in the link state database is used to build a routing table by calculating a shortest-path tree.
    • E、By default,link state databases are refreshede very 10 minutes in the absence of topology changes.

    正确答案:A,C,D

  • 第18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19题：

    Which three statements about OSPF areas are true?（）

    • A、Areas introduce a boundary on the link - state updates.
    • B、Areas are  logical definitions specific to any given router.
    • C、All routers within an area have the exact link - state database.
    • D、The calculation of the Dijkstra algorithm on a router is limited to changes within an area.
    • E、The area designated router will always  have a priority of 0.

    正确答案:A,C,D

  • 第20题：

    Which two are characteristics of link-state routing protocols?（） (Choose two.)

    • A、Routers choose a best path for a destination based on the SPF algorithm.
    • B、All routers in a given area or level build a consistent database describing the network's topology.
    • C、Routers choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.
    • D、All routers in a given area or level forward link state advertisements between interfaces in the same area or level, adding their metric to the link state advertisement's cost information when they forward it.

    正确答案:A,B

  • 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：

    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23题：

    单选题
    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： A
    解析： 暂无解析

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