单项选择题
A.28.8kbps B.56kbps C.128kbps D.1544kbps
Which two factors affect the speed of your DSL connecti...
多项选择题Which two factors affect the speed of your DSL connection?（）
A.line quality B.distance from the CO C.brand of xDSL modem D.number of twisted-pair wires used
Your ERX router is supporting 100 virtual routers.A spe...
单项选择题Your ERX router is supporting 100 virtual routers.A specific line module supports IP interfaces in 5 virtual routers.How many routing tables are maintained on that module？（）
A.0 B.1 C.5 D.100
Beginning with software version 4-0-0.rel，how many virt...
单项选择题Beginning with software version 4-0-0.rel，how many virtual routers canbe configured on the ERX Edge Router？（）
A.32 B.128 C.256 D.1000
