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如果OSPF链路故障，哪个包广播网络的变化（）
- A、Link-state advertisement
- B、Database Description
- C、Link-state request
- D、Link-state update
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更多 “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” 相关考题
考题
Which two statements are correct regarding IS－IS?()
A. Routers maintain a single link-state database per area.B. Routers maintain a separate Level 1 link-state database.C. Routers maintain a separate Level 2 link-state database.D. Routers maintain a single Level 1 link-state database across multiple areas.
考题
By default, how often does an ERX Edge Router send an OSPF link－state advertisement in a stable network?()
A.AB.BC.CD.D
考题
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
考题
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
考题
Why would you make a non－backbone area a stub or not－so－stubby area?()
A. to aggregate routes learned from the ABRB. to lower the cost of routes advertised by the ABRC. to connect a non-contiguous area to the backboneD. to decrease the size of the link-state database in that area
考题
What information does a router running a link－state protocol use to build and maintain its topological database?()
A. hello packetsB. SAP messages sent by other routersC. LSAs from other routersD. beacons received on point-to-point linksE. routing tables received from other link-state routersF. TTL packets from designated routers
考题
OSPF包括哪些报文类型()
A.HelloB.Database descriptionC.Link state requestD.Link state DDE.Link state advertisement
考题
OSPF is a link-state routing protocol。It is designed to be run internal to a single （）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （74） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。A.protocol
B.network
C.broadcast
D.multipath
考题
OSPF is a link-state routing protocol。It is designed to be run internal to a single （71）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。A.autonomous
B.network
C.computer
D.server
考题
Which three fields are optional in an OSPFv3 external LSA？（）A、Forwarding AddressB、External RouteC、Reference Link-State IDD、OptionE、Prefix Options
考题
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
考题
Why would you make a non-backbone area a stub or not-so-stubby area？（）A、 to aggregate routes learned from the ABRB、 to lower the cost of routes advertised by the ABRC、 to connect a non-contiguous area to the backboneD、 to decrease the size of the link-state database in that area
考题
What is the purpose of the OSPF hello packet？（）A、 advertises reachable networksB、 acknowledges the receipt of update packetsC、 establishes and maintains neighbor relationshipsD、 describes the contents of the link-state database
考题
BGP是哪种类型的路由协议：（）。A、通路向量（pathvector）路由协议B、距离向量（distancevector）路由协议C、链路状态（link-state）路由协议D、以上都不是
考题
What information does a router running a link-state protocol use to build and maintain its topological database？ （）A、 hello packetsB、 SAP messages sent by other routers C、 LSAs from other routersD、 beacons received on point-to-point linksE、 routing tables received from other link-state routersF、 TTL packets from designated routers
考题
Which two statements are correct regarding IS-IS？（）A、Routers maintain a single link-state database per area.B、Routers maintain a separate Level 1 link-state database.C、Routers maintain a separate Level 2 link-state database.D、Routers maintain a single Level 1 link-state database per area.
考题
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
考题
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
考题
多选题What information does a router running a link-state protocol use to build and maintain its topological database? （）Ahello packetsBSAP messages sent by other routersCLSAs from other routersDbeacons received on point-to-point linksErouting tables received from other link-state routersFTTL packets from designated routers
考题
多选题Which of the following data structures exist on a router for the OSPF routing protocol？（）AOSPF topology tableBOSPF interface tableCOSPF routing information baseDOSPF link-state databaseEOSPF adjacency tableFOSPF neighbor table
考题
单选题What is the purpose of the OSPF hello packet？（）A
advertises reachable networksB
acknowledges the receipt of update packetsC
establishes and maintains neighbor relationshipsD
describes the contents of the link-state database
考题
单选题Why would you make a non-backbone area a stub or not-so-stubby area？（）A
to aggregate routes learned from the ABRB
to lower the cost of routes advertised by the ABRC
to connect a non-contiguous area to the backboneD
to decrease the size of the link-state database in that area
考题
多选题Which three fields are optional in an OSPFv3 external LSA？（）AForwarding AddressBExternal RouteCReference Link-State IDDOptionEPrefix Options
考题
名词解释题link－state连接状态
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