Go back to 350-029 - CCIE Service Provider Written Exam

Question :-

What is the effect of turning on all available downstream carrier tones in a DMT DSL transmission systems?
Downstream RS error correction effectiveness is reduced.
The downstream line rate and throughput remains unchanged, but FEC efficiency is reduced.
The upstream DSL bandwidth is reduced, since less carriers become available for upstream traffic.
The downstream DSL bandwidth is increased.

Want to practice for 350-029 - CCIE Service Provider Written Exam ? Click here.