SelectakeybenefitofDSL.（）A.TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.B.The local loop is a dedicated connection for a single subscriber to the DSLAM. C.Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time. D.There are no distance requirements from the Central Office (CO).

单项选择题

Select a key benefit of DSL.（）

A.TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.
B.The local loop is a dedicated connection for a single subscriber to the DSLAM.
C.Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time.
D.There are no distance requirements from the Central Office (CO).

CCNP(642-081)