||Of the following, which xDSL types are most closely related?|
||Answer: C. They are both
standards. Although HDSL2 and
are both symmetric, only G.SHDSL
is a standard.|
||How is analog voice traffic integrated with SDSL?|
Signals are split by frequency
One wire of the pair carries voice, and the other one carries data
The analog voice traffic may not be integrated with SDSL
SHDSL, uses all frequencies on the twisted wire pair, including the lower frequencies that would otherwise be used by
||DSL is considered to exist in which OSI reference model layer?|
Layer 2 or 3, depending on the modulation
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