How many traffic classes are supported on the ERX Edge Router?（）

单项选择题On which component are RED and WRED managed in the router?（）

A. I/O module
B. switch fabric
C. egress line module
D. ingress line module

单项选择题Conformed and commited buffer percent values are configured with which parameter?（）

A. qos profile
B. traffic class
C. queue profile
D. scheduler profile

单项选择题Which statement describes queue and buffer managment in the E-series router?（）

A. Buffer memory is managed dynamically in the I/O module.
B. Buffer memory is managed dynamically in the switch fabric.
C. Buffer memory is managed dynamically on egress line modules.
D. Buffer memory is managed dynamically on ingress line modules

单项选择题Which attribute allows a VRF to accept VPN routes from another VRF?（）

A. route list
B. route origin
C. route target
D. route distinguisher

多项选择题Which two routes do P routers see by default in a BGP MPLS VPN configuration? （）(Choose two.)

A. IGP routes advertised by P routers
B. IGP routes advertised by PE routers
C. VPN routes advertised by PE routers
D. VPN routes advertised by CE routers