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問答題

【簡答題】spanning-tree關(guān)于listening and learning time 如何 adjust and change a mount of time？

答案： using command “spanning-tree vlan ...

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【簡答題】Which OSPF network type is ideal for partially meshed NBMA networks because it is easy to configure（requires no configuration of neighbor commands）， consumes only one IP subnet， and requires no designated router election？

答案： Point-to-multipoint.

【簡答題】Which OSPF feature allows a router to continue to forward packets while undergoing specific， well-known failure conditions？

答案： OSPF Graceful Restart.