TEL102: Telecommunications 2

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Assignment 7

This assignment is based on chapter 7.
  1. The largest WAN today is the _______________.?

  2. How are WANs and LANs similar?

  3. How are WANs and LANs different?

  4. A continuously available channel is called a _______________.?

  5. How are dedicated lines distinguished?

  6. Generally, which WAN topology is less costly to extend and provides shorter data paths?

  7. Generally, which WAN topology is more fault-tolerant?

  8. Identify two disadvantages of dialup connections.

  9. The FCC limits PSTN lines to _______________.?

  10. Which switching method is mostly used for PSTN?

  11. At what layer of the OSI model does Frame Relay operate?

  12. Frame Relay throughput is between _______________.

  13. Which type of Frame Relay link is best suited for frequent/consistent transmission?

  14. Describe the channel differences between ISDN BRI and PRI.

  15. At what layer of the OSI model does T-carrier operate?

  16. Which multiplexing method is employed by a T1 connection?

  17. Which T-carrier is best suited for a company with low transmission requirements?

  18. The T1 customer connection point is usually a _______________.

  19. At what layer of the OSI model does DSL operate?

  20. Identify the type of communication where upload/download throughput values are different?

  21. What is the function of a DSL splitter?

  22. Broadband cable provides throughputs of approximately ________ upload and ________ download?

  23. At what layer of the OSI model do cable modems operate?

  24. What attribute of broadband cable raises concerns about security and throughput?

  25. At what layer of the OSI model does SONET operate?

  26. Which of the satellite technologies is well-established and least expensive?

  27. Identify the advantages of dial-up networking.

  28. For dial-up networking, which communication protocol is preferred - SLIP or PPP?

  29. Is PPP only used over dial-up connections?

  30. Which VPN protocol is more commonly used?

Know the following terms:

This page last modified on 01/24/2008