Chapter 11 Review Questions

2. List the main responsibilities of the Internet Protocol.
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3. List the main responsibilities of the Transmission Control Protocol.
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4. Explain the relationship of the port number to an IP address.
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5. Is UDP the same thing as TCP? Explain.
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6. What is the relationship between IP and ICMP?
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7. Is DHCP the same thing as NAT? Explain.
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9. What is the HTTP used for?
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13. How does XML differ from HTML and Dynamic HTML?
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14. What is the purpose of the Uniform Resource Locator (URL)?
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15. List the four basic parts of the URL.
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16. How does the Domain Name System translate a URL into a 32-bit binary address?
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17. What are the different classes of IP addresses?
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18. What is the file transfer protocol (FTP) used for?
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19. What is the main function of Telnet?
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21. What other options are available for transmitting voice via Internet technology besides voice over Internet?
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23. What are the duties of SMTP, POP3, and IMAP, when referring to e-mail systems?
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29. What is a cookie? Who makes cookies and where are they stored?
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31. How can a business use a virtual private network and tunneling to support an off-site connection?
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32. How will IPv6 differ from the current version (4) of IP?
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Chapter 11 Exercises

2. Given an IP packet of size 540 bytes, and a maximum packet size of 200 bytes, what are the IP Fragment Offsets and More flags for the appropriate packet fragments?
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3. The Hop Limit field in IPv6 is 8 bits long (the same size as the equivalent Time to Live field in IPv4). Since this hop count is reduced each time an IP datagram enters a router, what are the implications of a small field size?
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4. Suppose there is a small commercial retail building in your town that has essentially one room. On one side of the room is a real estate agency and on the other side of the room is a guy who sells tea. How does this situation serve as an analogy for the concept of IP addresses with TCP port numbers?
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6. Why is ARP necessary if every workstation connected to the Internet has a unique IP address?
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7. If I dial in to the Internet from home, is it likely that my workstation is using DHCP? Explain.
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9. If three users on one local area network all request a web page at the same time, how does NAT know which results go to which workstation?
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10. If your computer workstation has an IP address of 167.54.200.32, is it a Class A, B, C, or D IP address?
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11. What are the advantages and disadvantages of using dynamic IP address assignments?
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12. Locate and label the service, host name, directory, and filename in the following hypothetical URL:
http://www.reliable.com/listings/pages/web.htm
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17. With respect to e-mail, what is the relationship between SMTP and POP3? Can one operate without the other? Explain.
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19. Are HTTP and HTML two protocols with the same function? Explain.
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22. Is HTML a subset of XML, or is it the other way around? Explain.
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