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()
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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
ACompanyisusing6to4tunnelsintheirIPv6network.Whichtwostatementsaretrueaboutthesetunnels?()
A. Ina6to4tunnel,thefirsttwobytesoftheIPv6addresswillbe0x2002andthenextfourbyteswillbethehexadecimalequivalentoftheIPv4address
B. Ina6to4tunnel,theIPv4address192.168.99.1wouldbeconvertedtothe2002:1315:4463:1::/64IPv6address
C. Ina6to4tunnel,theIPv4address192.168.99.1wouldbeconvertedtothe2002:c0a8:6301::/48IPv6address
D. Ina6to4tunnel,thefirsttwobytesoftheIPv6addresswillbelocallyderivedandthenexttwobyteswillbethehexadecimalequivalentoftheIPv4address
E. Ina6to4tunnel,theIPv4address192.168.99.1wouldbeconvertedtothe2002:c0a8:6301::/16IPv6address
各单位党政领导,应经常督促检查所属车辆交通安全情况,把车辆交通安全作为重要工作纳入议事日程,并及时总结,解决存在的问题,严肃查处事故责任者。()