Refer to the exhibit． A network associate has configured the internetwork that is shown in the exhibit, but has failed to configure routing properly． Which configuration will allow the hosts on the Branch LAN to access resources on the HQ LAN with the least impact on router processing and WAN bandwidth?

A、 HQ(config)# ip route 192．168．1．0 255．255．255．0 192．168．2．5
Branch(config)# ip route 172．16．25．0 255．255．255．0 192．168．2．6
B、 HQ(config)# router rip
HQ(config-router)# network 192．168．2．0
HQ(config-router)# network 172．16．0．0
Branch(config)# router rip
Branch (config-router)# network 192．168．1．0
Branch (config-router)# network 192．168．2．0
C、 HQ(config)# router eigrp 56
HQ(config-router)# network 192．168．2．4
HQ(config-router)# network 172．16．25．0
Branch(config)# router eigrp 56
Branch (config-router)# network 192．168．1．0
Branch (config-router)# network 192．168．2．4
D、 HQ(config)# router ospf 1
HQ(config-router)# network 192．168．2．4 0．0．0．3 area 0
HQ(config-router)# network 172．16．25．0 0．0．0．255 area 0
Branch(config)# router ospf 1
Branch (config-router)# network 192．168．1．0 0．0．0．255 area 0
Branch (config-router)# network 192．168．2．4 0．0．0．3 area 0

【正确答案】 A

【答案解析】动态路由协议都是需要有他的更新包来传递路由的，而这些都是会占用带宽的，为了减小流量的冲突我们可以采用静态路由，他是会占用任何带宽的。