下列各项是心房扑动的特点,哪项除外?
A.P波消失
B.出现F波
C.F波频率450~600次/min
D.F波间隔规律
E.F波可以固定比例下传心室
第1题
A. source port
B. output interface
C. next-hop IP address
D. source MAC address
E. destination IP address
F. next-hop MAC address
第2题
A.networkunification
B.remoteaccess
C.mobilityservices
D.networkmanagement
第3题
A.multipleFrameRelayPVCs
B.dualWanlinkstotheregionaloffice
C.dualWanlinkstoanotherbranchoffice
D.singlelinks-onetotheregionalofficeandonetoanotherbranchoffice
第4题
A.DynamicTrunkingProtocol
B.ResilientPacketRing
C.SynchronousDigitalHierarchy
D.CoarseWaveDivisionMultiplexing
第5题
A.availability
B.performance
C.functionality
D.manageability
第6题
A.只有主机D
B.只有路由器R1
C.只有主机A.B和C
D.只有主机A.B.C和D
E.只有主机B和C
F.只有主机B.C和路由器R1
第7题
A.UsedefaultLayer4hashincore.
B.UsedefaultLayer3hashindistribution.
C.UsedefaultLayer4hashindistribution.
D.UsedefaultLayer3hashincoreandLayer3+Layer4hashindistributionlayer.
第8题
A.出现了目的地不可达错误
B.数据包类型未知
C.一个数据包超时
D.ping中断
E.成功收到四个数据包
F.超过了数据包的TTL值
第9题
A.AfirewallinroutedmodehasoneIPaddress
B.AfirewallintransparentmodehasoneIPaddress
C.Inroutedmode,thefirewallisconsideredtobeaLayer2dew
D.Inroutedmode,thefirewallisconsideredtobeaLayer3device
E.Intransparentmode,thefirewallisconsideredtobeaLayer2device
F.Intransparentmode,thefirewallisconsideredtobeaLayer3device
第10题
A.Alogicalstartopologyprovidesaloopfreeenvironmentsothatalllinkswillbeusedforwardtraffic
B.EnhancedEtherChannelhashingloadbalancingusingthevPCpeerlinkinternaltotheVPC
C.ThecontrolplanefunctionsoftheNexusswitchesaremergedtohidetheuseofvirtualization
D.NeighboringdevicesconnectonaLayer3MECforimprovedpacketforwarding
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