Which two B-RAS service offerings maintain the analog dial-up model with centralized user authentication，authorization，andaccounting？（）

单项选择题You would like to configure an ATM PVC with a virtual circuit identifier of 33 on virtual path 0.The PVC should use an unspecified bit rate and be encapsulated in the AAL5SNAP format.Which command accomplishes this goal？（）

A.atm pvc0/33 aal5snap
B.atm pvc33033 aal5snap
C.atm pvc0/33 aal5snap ubr
D.atm pvc33033 aal5snap ubr

单项选择题What is the maximum attainable bandwidth using an analog data modem？（）

A.28.8kbps
B.56kbps
C.128kbps
D.1544kbps

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

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

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