Name:_______________________

Section:_____________________

Student ID:___________________

University of Washington
FIT100 Midterm 1
Monday, October 21^st, 2002

Closed book, closed notes, closed neighbor, no calculators

Short answer questions mean 2 to 3 sentences MAX.
All questions are worth 1-2 points unless otherwise noted.

1. [4] True or False? Circle one option for each line.

T F dante.u.washington.edu is a host name

T F A byte consists of 10 bits

T F The computer's memory is used to store both program instructions

and data

T F A bit allows representation of 8 things

What makes the WWW different from the Internet? Circle all that apply.

A. The WWW uses the TCP/IP protocol, the Internet does not

B. The WWW is all web servers and the files on them that are connected to the Internet

C. The WWW is all server computers and the files on them that are connected to the Internet

D. The Internet is a subset of the WWW

What function does the ALU perform?

A. Instruction fetch

B. Storage

C. Retrieval

D. Computation

4. Draw a picture on the right of the HTML code that accurately shows what it would look like in a browser. Assume that there is HTML before and after this code, but you only have to interpret this section.

…..

<p>Homework</p>

<tr>

</tr>

<tr>

<td>for Wednesday</td>

</tr>

<tr>

<td> algorithms in class</td>

</tr>

</table>

…..

5. Explain how TCP/IP is used to send information across the Internet.

Suppose there is a file named jordan.html in an account on the students server with the UW Net ID of hang10dude.

Then http://students.washington.edu/hang10dude/jordan.html is the path to that file.

Now suppose that you have a file name default.html inside a folder named webstuff. Suppose that webstuff is inside another folder called fit100. Finally, suppose that fit100 is root directory of the hang10dude account. Give the absolute path to the default.html file.

“In the PandA encoding there are just two basic patterns: Present and Absent.” Could Dude and Wicked be used as the names of the patterns instead of Present and Absent? Explain why or why not.

Ethernet is...

A. a protocol based on Unicode

B. a nationwide military and research network that preceded the Internet

C. a protocol for wireless communication

D. a method for routing data across networks

E. a technique for local area networking

Metaphors are commonly used in interface design as a way to help new users relate something in a program with an action or object in their everyday world. Describe a metaphor that is used in computers that helps a user understand how part of a program works because it is similar to the real-world counterpart.

If people understand names and computers only understand numbers, how is it that you can request this page: http://www.washington.edu and your computer will know where to send the request for information?

If I enter the following search in a search engine:

+(“Chicago Bulls” OR “North Carolina”) +“Michael Jordan”–Wizards

What EXACTLY am I asking the search engine to do? Be specific.

A. What is a protocol?

B. Why are they necessary in Information Technology?

[3] Circle 3 errors in this HTML code and say what is wrong. Be sure to circle EXACTLY three errors, no more, no less.

<html>

<head>

<Title>My HTML Skill Set</Title>

<!--

h1 (color: blue; font-size: 16pt)

p {font-family: Verdana;}

-->

</STYLE>

</head>

<body>

<h1> Welcome! </h1>

<p>This page teaches you about:

<LI>fonts, headers, colors</LI>

<LI>images</LI>

<LI>links</LI>

<LI>tables<LI>

<LI>emailto</LI>

</UL>

</p>

For more information, contact Me,

<A name="mailto:me@u.washington.edu">me@u.washington.edu

</p>

</body>

</html>

Name three elements of a Web site that help convey a sense of credibility.

A search engine consists of four parts (from lecture). Name 2 of them and explain what each one does.

What area of color does RGB(0, 0, 255)specify? Explain.

If you have 4 bits of computer memory available, how many different patterns of 0’s and 1’s can be formed? Show your work in getting the answer.

A client computer is:

A. The computers in lab

B. Any computer that requests a service

C. Any computer that provides a service

D. A and B only

E. A and C only

Digital Representation is the use of ______________ to create symbols to stand in place of something else.

20. There are lots of different types of motor vehicles. Think of some of the different types. Think about how these types could be organized as a hierarchy of categories. Then draw a diagram showing the hierarchical structure. Put the broad category ("motor vehicles") at the top, and draw one box for each subcategory. It is enough to have 6 vehicle types and a hierarchy containing at least 2 levels of subcategories besides the broad category.

21. Here’s a sequence of bits: 0110 0011 0011 1111 0110 0000

What can this sequence represent?

a. Sound

b. Three characters

c. The RGB of a pixel

d. a, b, and c

e. None of the above

Explain your answer.

This is a validly formed URL:

http://www.ischool.washington.edu/research/newsletter/vol4/page9.htm

From this URL, circle the various parts of it that satisfy the description. It is possible you might circle a portion more than once, or not at all.

Scheme (Protocol):

http://www.ischool.washington.edu/research/newsletter/vol4/page9.htm

Directories (Folders):

http://www.ischool.washington.edu/research/newsletter/vol4/page9.htm

TLD:

http://www.ischool.washington.edu/research/newsletter/vol4/page9.htm

Extension:

http://www.ischool.washington.edu/research/newsletter/vol4/page9.htm

23. The Greek alphabet has 24 letters. At a minimum how many bits per character would we need to represent the Greek letters? Explain your answer.

When doing searches for images in Assignment 1, I asked you to use the same search in 3 different search engines. Most of the time the results returned by each search engine varied slightly-even though you used the same exact search terms. Using what you know about search engines, offer an explanation for this.

EXTRA CREDIT (3 points):

Convert this binary number to its decimal counterpart. Show your work to receive full credit.

0011 1101