问答题What is the next state of initial in spanning-tree protocol？
问答题
What is the next state of initial in spanning-tree protocol？
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Configuration management is the process of managing change in hardware，software，firmware，documentation，measurements，etc．As change requires an initial state and next state，the marking of significant states within a series of several changes becomes important．The identification of significant states within the revision history of a configuration item is the central purpose of(75) identification．A．baselineB．valueC．costD．control
Which term describes a spanning－tree network that has all switch ports in either the blocking or forwarding state?() A. redundantB. spannedC. provisionedD. converged
When a router undergoes the exchange protocol within OSPF, in what order does it pass through each state?() A.exstart stateexchange stateloading statefull stateB.exstart statefull stateloading stateexchange stateC.Loading stateexchange statefull stateexstart stateD.exstart stateloading stateexchange statefull state
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
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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
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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When a router undergoes the exchange protocol within OSPF, in what order does it pass through each state?（）Aexstart stateexchange stateloading statefull stateBexstart statefull stateloading stateexchange stateCLoading stateexchange statefull stateexstart stateDexstart stateloading stateexchange statefull state
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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
单选题What Cisco technology protects against Spanning-Tree Protocol manipulation？（）A Spanning tree protectB Root Guard and BPDU GuardC Unicast Reverse Path ForwardingD MAC spoof guardE Port Security
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多选题Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?（）APortFastBUplinkFastCloop guardDroot guardEBPDU guardFBackboneFast