Instructions: For each question on the exam, write the letter of your choice (or your short answer) in the space provided below. Choose the single best answer to the question.

This exam has 30 questions. Please check that you have all pages.

Please write your name:______________________________________________

1. ________
2. ________
3. ________
4. ________
5. ________
6. ________
7. ________

For 8-10: Write an HTML problem/error

8. ______________________________
9. ______________________________
10. ______________________________
11. ________
12. ________
13. ________
14. ________
15. ________
16. ________
17. ________
18. ________
19. ________
20. ________
21. ________
22. ________ (write a number)
23. ________
24. ________ (write the IP address)
25. ________
26. ________
27. ________
28. ________
29. ________
30. ________

2. What is true about TCP?

1. It works with IP
2. It works with RFP
3. It works with IETF
4. None of the above

1. What is one advantage of packet switching over circuit switching?

1. Packet switching is the only method suitable for telephone communication
2. Packet switching enables multiple signals to share the same channel
3. Circuit switching enables multiple signals to share the same channel
4. Only circuit switching is suitable for the Internet

1. Quality of Service (QoS) will be implemented in the new IP. Why is this important?

1. QoS is needed for better security on the Internet
2. QoS is needed for so that email may be delivered even when the remote system is down
3. QoS is needed for better multimedia performance
4. QoS is needed to enable charging by the minute for Internet access

1. Which organization is NOT involved in managing or administering the Internet?

1. The Internet Society (ISOC)
2. The Internic
3. DEPPA
4. The Internet Architecture Board (IAB)

1. Why do Unix users need to distinguish between "absolute" and "relative" directory paths?

1. Because there can be many directories with the same name, but only one with a particular absolute path (like /export/htdocs/inls80)
2. Because there can be many directories with the same name, but only one with a particular relative path (like /export/htdocs/inls80)
3. Because there can be many directories with the same absolute path, but only one with a particular name (like /export/htdocs/inls80)
4. None of the above are true

1. Which is a difference between Netscape Navigator and Microsoft Internet Explorer?

1. Only Netscape understands HTML
2. Only Explorer understands the "mailto:" tag
3. Only Explorer lets you set preferences
4. None of the above are differences

1. If you are editing a Web page but the changes are not showing up in your browser, what might the problem be?

1. You might have forgotten to upload the changed files to the Web server
2. You might have forgotten to reload the page
3. You might have forgotten to use "binary" mode to transfer image files
4. All of the above might be problems

8, 9, 10: For questions 8-10, write three things wrong with this HTML code (there may be more than 3 things wrong):

11. If you are told to subscribe to the "inls80-01" mailing list by sending email to listproc@ils.unc.edu, what might you infer?

1. That the list will be listed online at http://www.lsoft.com
2. That you do not need to include your real name in order to subscribe
3. That the list is managed by Listprocessor software
4. That the list is managed by Majordomo software

12. What is the effect of the "-m" option for the "ls" command?

1. Adds file size in bytes
2. Adds file size in kilobytes
3. Appends a slash ( / ) for directories
4. None of the above

13. What does the "chmod" command do?

1. Copies a file
2. Renames a file
3. Changes file permissions
4. Alerts the Web server, httpd, that your file is published

14. What is true about httpd?

1. It was invented in the 1970s by DARPA
2. httpd may only be used with Netscape
3. httpd is the Web server protocol
4. httpd is the Web email protocol

15. What is true about HTML?

1. HTML is a programming language like C++ or Java
2. HTML files consist of binary (non-text) data
3. HTML files should not be edited with "pico"
4. HTML tags are identified by < and >

16. What criteria might be used by someone deciding between Microsoft FrontPage and Netscape Composer?

1. Availability of online help
2. Whether one page is being edited, or a whole collection of pages
3. Friendliness of the interface
4. All of the above

17. How might two Internet search engines differ?

1. Whether they use HTML files only, or other types of data (like network news)
2. Whether they allow you to search with Boolean expressions
3. Whether they try to index the entire Web, or just a selected subset
4. All of the above might be differences

18. How might someone decide between Siren and Eudora email clients?

1. Only Eudora can send attachments with MIME
2. Only Siren complies to RFC822
3. Only Eudora uses POP to store messages on the client computer
4. Only Eudora uses POP to store messages on the server computer

19. Which is a true statement about email?

1. You could easily switch between Pine and Siren to read your email on the ILS server
2. You must understand RFC2045 before you can send an email attachment
3. You can choose between the MIME method and the SMTP method for sending an email attachment
4. None of the above are true

20. What is the difference between HTML tags "<ol>" and "<ul>"

1. <ul> may be nested in <ol>, but <ol> may not be nested in <ul>
2. <ul> makes a numbered list
3. <ol> makes a numbered list
4. <ol> is for an outside list, while <ul> is for an underlined list

21. Which is the default port for telnet?

1. 80
2. 21
3. 23
4. 25

22. On Ruby, how many files are in the directory /export/htdocs/inls80/testfiles ? (Write the number of files on the answer sheet)

23. Why might you want to use Microsoft FrontPage rather than pico for creating HTML files?

1. Because pico is WYSIWYG
2. Because FrontPage runs on the Ruby web server
3. Because pico has a convenient pull-down menu system
4. None of the above are true

24. What is the IP address for ruby.ils.unc.edu ? (Write the IP address on the answer form)

25. What is true about copyright?

1. Posts to network newsgroups and mailing lists are in the public domain
2. The doctrine of fair use specifies that copying or scanning a single cartoon from the newspaper and putting it on your Web page is OK
3. Any online material may be redistributed or put on a Web page, as long as you only do it once
4. None of the above are true

26. If you were asked to set up way for people in a class to have electronic discussions, what might you consider?

1. Whether a mailing list might be more appropriate because all subscribers get their own copy of the messages
2. Whether a Web-based discussion forum might be more appropriate because it's easier to incorporate HTML in the messages
3. Both A and B are true
4. None of the above are true

27. What are some of the problems with IRC?

1. Most IRC clients can only access a few discussions
2. All IRC servers share the same channels, so it's hard to create a new channel
3. It's difficult to learn to use IRC clients
4. None of the above are true

28. What is true about netiquette?

1. Network news does not have netiquette
2. IRC clients enforce good netiquette
3. Netiquette on one mailing list might be different than for another mailing list
4. All of the above are true

29. What does it mean to "subscribe" to a network newsgroup?

1. That all the messages will arrive in your personal mailbox
2. That the server will start getting messages from that newsgroup
3. That your news client will show you the messages from that newsgroup
4. All of the above are true

30. Where was MOSAIC developed?

1. CERN, in Switzerland
2. NCSA, in Illinois
3. Netscape, in California
4. None of the above