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
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
相关考题：
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.
By default, how often does an ERX Edge Router send an OSPF link－state advertisement in a stable network?() A.AB.BC.CD.D
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
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
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
OSPF包括哪些报文类型() A.HelloB.Database descriptionC.Link state requestD.Link state DDE.Link state advertisement
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.protocolB.networkC.broadcast D.multipath
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
Which three fields are optional in an OSPFv3 external LSA？（）A、Forwarding AddressB、External RouteC、Reference Link-State IDD、OptionE、Prefix Options
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
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
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
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
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.
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
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
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
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
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
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
多选题Which three fields are optional in an OSPFv3 external LSA？（）AForwarding AddressBExternal RouteCReference Link-State IDDOptionEPrefix Options
名词解释题link－state连接状态