Refer to the exhibit. The Gateway Load Balancing Protocol has been configured on routers R1 and R2， and hosts A and B have been configured as shown. Which statement can be derived from the exhibit？（）
A. The hostA default gateway has been configured as 10.88.1.10/24.
B. The GLBP weighted load balancing mode has been configured.
C. The GLBP round-robin， load-balancing mode has been configured.
D. The GLBP host-dependent， load-balancing mode has been configured.
E. The hostA default gateway has been configured as 10.88.1.1/24.
F. The hostA default gateway has been configured as 10.88.1.4/24.
Refer to the exhibit. HSRP has been configured and Link A is the primary route to router R4. When Link A fails， router R2 （Link B） becomes the active router. Which router will assume the active role when Link A becomes operational again？" （）
A. The primary router R1 will reassume the active role when it comes back online.
B. The standby router R2 will remain active and will forward the active role to router R1 only in the event of its own failure.
C. The standby router R2 will remain active and will forward the active role to router R1 only in the event of Link B failure.
D. The third member of the HSRP group， router R3， will take over the active role only in event of router R2 failure.
Refertotheexhibit.RouterR1isbeingusedasarelaydeviceforautoconfigurationofswitchS1.Whichconfigurationwillaccomplishthis?（）
A. S1(config)#interfacefastethernet0/1S1(config-if)#iphelper-address10.0.0.2
B. S1(config)#interfacefastethernet0/1S1(config-if)#iphelper-address20.0.0.1
C. R1(config)#interfacefastethernet0/0R1(config-if)#iphelper-address20.0.0.2R1(config-if)#iphelper-address20.0.0.3R1(config-if)#iphelper-address20.0.0.4R1(config-if)#exitR1(config)#interfacefastethernet0/1R1(config-if)#iphelper-address10.0.0.1
D. R1(config)#interfacefastethernet0/0R1(config-if)#iphelper-address20.0.0.1R2(config)#interfacefastethernet0/0R2(config-if)#iphelper-address20.0.0.1R3(config)#interfacefastethernet0/0R3(config-if)#iphelper-address20.0.0.1R4(config)#interfacefastethernet0/0R4(config-if)#iphelper-address20.0.0.1
E. S1(config)#interfacefastethernet0/1S1(config-if)#iphelper-address10.0.0.2R2(config)#interfacefastethernet0/0R2(config-if)#iphelper-address20.0.0.1R3(config)#interfacefastethernet0/0R3(config-if)#iphelper-address20.0.0.1R4(config)#interfacefastethernet0/0R4(config-if)#iphelper-address20.0.0.1
据英国官方统计，“伦敦烟雾事件”之后的两个月内相继有（）死于呼吸疾病。
A. 7000人
B. 8000人
C. 9000人
D. 10000人
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