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End-to-End DSL Architectures by Wayne C. Vermillion

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Chapter 3

1: How is the number of required PPPoE servers determined?
  1. By determining the number of connections needed

  2. By determining how many DSLAMs are required

  3. Through the assignment of IP addresses

  4. By determining the number of subscribers supported

A1: Answer: A. IP addressing does not determine the number of connections. Because PPPoE supports multiple online sessions per PPPoE connection, the precise number of subscribers cannot be known.
2: The characteristics of PPPoE most closely match the characteristics of what?
  1. Dial mode

  2. Server mode

  3. PPP mode

  4. None of the above

A2: Answer: A. PPPoE's individual connection, with possible multiple end users sharing that connection, is most similar to the dial model.
3: Determining whether the service provider or the ...

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