Page 131 - Electronic Commerce

Chapter 2

voice-grade lines wireless access point (WAP)
Web wireless Ethernet
106 Web browser World Wide Web
Web browser software World Wide Web Consortium (W3C)
Web client computers Worldwide Interoperability for Microwave
Web client software Access (WiMAX)
Web server software XML parsers
Web servers XML vocabulary
wide area networks (WANs) ZigBee
Wi-Fi

Review Questions

1. What is the difference between an internet (small “i”) and the Internet (capital “I”)?
2. In its early years, the Internet was a military project that became a science project with
funding from the National Science Foundation. In one or two paragraphs, describe its tran-
sition to an environment that allowed and supported commercial activity.
3. In one or two paragraphs, explain what is meant by the term “Internet of Things.”
4. In a paragraph, explain why packet-switching is better than circuit-switching for the Internet.
5. Briefly describe the functions performed by routers in an interconnected network.
6. In about 100 words, explain the differences between a closed (or proprietary) architecture
and an open architecture. In your answer, be sure to explain which is used for the Internet
and why it is used.
7. Briefly describe the main concerns a company might have if it is still using the Internet
Protocol version 4 (IPv4).
8. In one or two paragraphs, describe the advantages and disadvantages of IMAP when
compared to POP.
9. In two paragraphs, outline how the ideas of Vannevar Bush and Ted Nelson became key
elements of the World Wide Web.
10. In about 100 words, describe the function of the Internet Corporation for Assigned Names
and Numbers. Include a discussion of the differences between gTLDs and sTLDs in your
answer.
11. The Web uses a client/server architecture. In about 100 words, describe the client and
server elements of this architecture, including specific examples of software and hardware
that are used to form the Web.
12. In about 200 words, define “markup languages.” Include overviews of HTML and XML in
your definition. As part of your answer, provide examples of at least two situations in which
an organization would use XML and two situations in which an organization would use
HTML.

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