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ISSC640 Week 5 Homework Assignment

Instructions: Please answer the following End of Chapter Exercises from Chapters 17-20 of your text.

Chapter 17 - LAN Extensions: Fiber Modems, Repeaters, Bridges, and Switches

17.1 When an optical fiber is used to extend a connection to a LAN, what additional devices are needed?

17.10 When bridging is used with a satellite link, two bridges are typically used, one on each side. Explain why.

Chapter 18 - WAN Technologies and Dynamic Routing

18.1 What are the conceptual parts of a traditional packet switch, and to what does it connect?

18.10 What benefit does dynamic routing offer?

Chapter 19 - Networking Technologies Past and Present

19.3 Which would you expect to have smaller delay, VSAT technology or WiMAX technology? Why?

19.6 What technology has replaced Ethernet hubs?

Chapter 20 - Internetworking: Concepts, Architecture, and Protocols

20.2 What is the chief difficulty in providing universal service?

20.6 In the 5-layer reference model used with the TCP/IP Internet protocols, what is the purpose of each of the five layers?