Whatshouldyoudotoreducespanning-treeprotocolBPDUtrafficduringextendedperiodsofinstabilityinyourVLANs?()
A. CombinealltheVLANspanningtreesintoasinglespanningtree
B. Setforwarddelayandmax-agetimerstothemaximumpossiblevalues
C. Noneofthechoices
D. ChangetherouterVTPservermode
E. Disabletherootbridge
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加强开关设备、保护装置的运行维护和检修管理,确保能够快速、可靠地切除故障。()
电网应进行合理分区,兼顾供电可靠性和经济性,分区之间要有备用联络线以满足一定程度的负荷互带能力()
各种车辆的技术状况应符合国家规定,安全装置完善可靠。()
Iftherootbridgefails,configurationBPDUswillnolongerbesent.WhichSTPtimerwillhavetoexpirebeforetheotherswitchescanactivelyrestoreconnectivitywithtopologychangeprocedureofSTP?()
A. hellotimer
BPDUtimer
C. Forward_delaytimer
D. Max_agetimer
E. Deadtimer
F. Waittimer