Appendix A. Answers to Review Questions

The answers to the chapter questions appear in boldface.

1:

Which of the following is not an optical metro region service provider service?

  1. Private-line aggregation

  2. Voice line switching

  3. Transparent lambda

  4. Data networking

A1:

b. Voice line switching

2:

Which portion of the network focuses on routing and caching?

  1. Metro network

  2. Service POP

  3. Core network

  4. None of the above

A2:

b. Service POP

3:

Which portion of the network is focused on connecting to the customer?

  1. Metro network

  2. Service POP

  3. Core network

  4. None of the above

A3:

a. Metro network

4:

What are the four main elements of a metropolitan environment?

  1. Metro network, core packet switching, web content, core network

  2. Access network, core packet switching, edge packet switching, ...

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