What is the effect of turning on all available downstream carrier tones in a DMT DSL transmission systems?

Question

Options

• ADownstream RS error correction effectiveness is reduced.
• BThe downstream line rate and throughput remains unchanged, but FEC efficiency is reduced.
• CThe upstream DSL bandwidth is reduced, since less carriers become available for upstream traffic.
• DThe downstream DSL bandwidth is increased.

• A
  13% (4)
• B
  3% (1)
• C
  6% (2)
• D
  78% (25)

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