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link-state连接状态
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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
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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
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.
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二次设备的退出状态是指()A、二次设备的工作电源投入,出口连接片连接到指令回路的状态B、二次设备的工作电源投入,出口连接片断开时的状态C、二次设备的工作电源退出,出口连接片连接到指令回路的状态D、二次设备的工作电源退出,出口连接片断开时的状态
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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
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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
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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
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单选题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
单选题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
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多选题Which three fields are optional in an OSPFv3 external LSA?()AForwarding AddressBExternal RouteCReference Link-State IDDOptionEPrefix Options
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多选题Which two statements are correct regarding IS-IS?()ARouters maintain a single link-state database per area.BRouters maintain a separate Level 1 link-state database.CRouters maintain a separate Level 2 link-state database.DRouters maintain a single Level 1 link-state database per area.
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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
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