An OSPF link can be in multiple states at any given moment （ie. Exstart， exchange， full）. Whichtwo IOS commands let you view the state of the link？（）A、show ip ospfB、show ip protocolsC、show ip ospf neighborD、show ip ospf interface
An OSPF link can be in multiple states at any given moment （ie. Exstart， exchange， full）. Whichtwo IOS commands let you view the state of the link？（）
- A、show ip ospf
- B、show ip protocols
- C、show ip ospf neighbor
- D、show ip ospf interface
相关考题：
输入哪条命令可以看到以下信息?（ ） LS DataBase Type :Router Ls id :10.1.2.2 Ady rtr :1050 Len :72 Seq :80000008 Cksum (DC) Area Border Router Link count 4 Link id :192.168.2.1 Data :255.255.255.255 Metric:1562 Link id :10.1.2.2 Data :10.1.3.1 Type :Router Metric :1562 Link id :10.1.3.2 Data :255.255.255.255 Type :StubNet Metric :1562A.show ip routeB.show ip ospf isaC.show ip ospf databaseD.show ip ospf interface
Which CLI command is used to see the current OSPF link－state database?() A. show ospf databaseB. show ospf neighborC. show protocols ospfD. show ospf link-state
What is the purpose of the OSPF link－state update packet?() A. describes a change to the OSPF hello timerB. carries one or more link-state advertisementsC. establishes and maintains neighbor relationshipsD. describes the contents of the entire link-state database
An OSPF interface has been configured with the bandwidth 64 command. What will be the calculated OSPF cost of this link?() A.1B.10C.1562D.64000E.128000
When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?() A. OSPF process IDB. OSPF router IDC. OSPF network typeD. OSPF memory usageE. OSPF CPU utilizationF. OSPF stub area configurations
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 secondsB. OSPF sends triggered updates when a network change occursC. 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 addressD. OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
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.
Which command is used to display the collection of OSPF link states?() A. show ip ospf lsa databaseB. show ip ospf link-stateC. show ip ospf neighborsD. show ip ospf database
OSPF包括哪些报文类型() A.HelloB.Database descriptionC.Link state requestD.Link state DDE.Link state advertisement
If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkB、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedC、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorD、A SHAM link is part of OSPF network of MPLS-VPN provider
Which statement is correct about an OSPF sham-link？（）A、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.B、A sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.C、A sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.D、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.E、A sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?（）A、OSPF process IDB、OSPF router IDC、OSPF network typeD、OSPF memory usageE、OSPF CPU utilizationF、OSPF stub area configurations
Which of the following data structures exist on a router for the OSPF routing protocol？（）A、OSPF topology tableB、OSPF interface tableC、OSPF routing information baseD、OSPF link-state databaseE、OSPF adjacency tableF、OSPF neighbor table
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 secondsB、OSPF sends triggered updates when a network change occursC、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 addressD、OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
输入哪条命令可以看到以下信息？（） LS DataBase Type :Router Ls id :10.1.2.2 Ady rtr :1050 Len :72 Seq# :80000008 Cksum (DC) Area Border Router Link count 4 Link id :192.168.2.1 Data :255.255.255.255 Metric:1562 Link id :10.1.2.2 Data :10.1.3.1 Type :Router Metric :1562 Link id :10.1.3.2 Data :255.255.255.255 Type :StubNet Metric :1562 A、 show ip route B、 show ip ospf isa C、 show ip ospf database D、 show ip ospf interface
如果OSPF链路故障，哪个包广播网络的变化（）A、Link-state advertisementB、Database DescriptionC、Link-state requestD、Link-state update
Which command is used to display the collection of OSPF link states？（）A、show ip ospf lsa database（not A）B、show ip ospf link-stateC、show ip ospf neighborsD、show ip ospf database
Which mechanism can you use to achieve sub-second failover for link failure detection when a switched Ethernet media is used and loss of signal is not supported by the link provider？（）A、OSPF standard hellosB、Cisco Discovery Protocol link detectionC、Bidirectional Forwarding DetectionD、Fast Link PulseE、autonegotiation
Routers A and B have an OC12c and a GE link between them and are running OSPF over both of these links.Which item is correct， assuming the default JUNOS software OSPF metric calculation？（）A、There are two equal cost paths between A and BB、The GE link is the preferred path between A and BC、The OC12c link is the preferred path between A and BD、Manual metric assignment must be configured to determine the outcome.
多选题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?（）AOSPF sends updates every 10 secondsBOSPF sends triggered updates when a network change occursCWhen 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 addressDOSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization
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（）AEach router has an identical link state database.BExternal routes are imported into a separate link state database.CSyn chronization of link state databases is maintained via floodingo f LSAs.DInformation in the link state database is used to build a routing table by calculating a shortest-path tree.EBy default,link state databases are refreshede very 10 minutes in the absence of topology changes.
单选题What is the purpose of the OSPF link-state update packet?（）Adescribes a change to the OSPF hello timerBcarries one or more link-state advertisementsCestablishes and maintains neighbor relationshipsDdescribes the contents of the entire link-state database
单选题Which CLI command is used to see the current OSPF link-state database?（）Ashow ospf databaseBshow ospf neighborCshow protocols ospfDshow ospf link-state
单选题Which statement is correct about an OSPF sham-link？（）AA sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.BA sham-link is a logical link between PE routers that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.CA sham-link is a logical link between PE routers that carries OSPF LSAs and forwards customer traffic across it.DA sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and carries OSPF LSAs.EA sham-link is a point-to-multipoint link that provides an OSPF adjacency between the PE routers and forwards customer traffic across it.
多选题If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）AA sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkBA sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedCA SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorDA SHAM link is part of OSPF network of MPLS-VPN provider
多选题An OSPF link can be in multiple states at any given moment （ie. Exstart， exchange， full）. Whichtwo IOS commands let you view the state of the link？（）Ashow ip ospfBshow ip protocolsCshow ip ospf neighborDshow ip ospf interface
单选题Which command is used to display the collection of OSPF link states?（）Ashow ip ospf lsa databaseBshow ip ospf link-stateCshow ip ospf neighborsDshow ip ospf database