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单选题
Which of the following uses a ring topology?（）
A
DSL
B
Ethernet
C
DOCSIS
D
SONET
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Which of the following are methods EIGRP uses to initially populate (seed) its EIGRP topology table, before learning topology data from neighbors？（）A、By adding all subnets listed by the show ip route connected commandB、By adding the subnets of working interfaces over which static neighbors have been definedC、By adding subnets redistributed on the local router from another routing sourceD、By adding all subnets listed by the show ip route static command
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