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Second Exam, Thursday 31 March 2005

1.  According to the online reading about the Voyager II space probe,
which of the following best describes the image compression method
that was used?
A)  Instead of using binary, the images were coded in
B)  The check-sum error checking method was used to
compress the files.
C)  A reduced color palette was used, so only five bits
instead of eight were used for each pixel.
D)  A run-time algorithm was used that kept track of how
many pixels had the same brightness value within a
row of pixels.
E)  In each row, the first pixel was sent as 8-bits as a
reference, but only the difference in brightness
between adjacent pixels was sent for the rest of the
row.

2. Which of the following binary numbers is equivalent to decimal
number 28?
A)  10101
B)  11010
C)  10110
D)  11100
E)  11101

3.  Which of the following decimal numbers is equivalent to binary number 101011?
A)  43
B)  47
C)  51
D)  57
E)  39

which of the following is would be the correct path to
enter or paste into the space where the red arrow is pointing
in the image above, for you to open your /backup/ directory or
folder on the backup disk array?
C)  ftp://uvm.edu/backup/jstudent
D)  C:/Document&Setting/backup/jstudent
E)  /…/uvm.edu/fs/backup/jstudent

5.  Here is a binary code for a bit-mapped (.bmp) pixel:
111111111111111100000000
Which of the following would be the color of the pixel?
A)  Cyan
B)  Green
C)  Yellow
D)  Red
E)  Magenta

6.  Imagine you are hired by the new used CD store
downtown to come up with a binary coding system for
the store’s inventory of  15,000 discs.  Which of
the following would be the minimum number of bits
you could use to code for the discs, so each disc
would have its own unique binary number?
A)  25
B)  9
C)  128
D)  14
E)  64

7.  Which of the following best explains the biggest problem with
the graph above?
A)  The graph should be a histogram.
B)  The graph should be a line graph.
C)  The graph should be a pie chart.
D)  The average hours sleep should be on the X axis,
while the student number should be on the Y axis.
E)  There should be at least five bars displayed instead of
just four.

8.  Imagine you are investigating the effect of acetaminophen on
heart rate in rats. You run your experiment on 1000 rats.  The
data are arranged as in this small section below:
Rat            Heart Rate            Dose
Number        Resting (B/min)     5mg     10mg    15mg
1                    200      198     203      197
2                    223      227     224      194
.                     .        .       .        .
1000                     215      218     217     220
Which of the following types of graph would best communicate all
the data above in one graph?
A) Histogram
B) Line graph with a line for each dose
C) Box plot for each dose
D) X-Y scatter plot
E) Pie chart for each dose

9.  Windows XP is to the computers in lab as which of the following
is to the zoo cluster?
A) public_html
B) SSH-FTP
C) Pine
D) Unix (AIX)
E) pico

10.  Which of the following commands would you enter at your zoo>
prompt to copy the file testquestion.txt from Dr. Leonard’s home
directory to your own own directory?
A) pip ~jleonard/testquestion.txt  testquestion.txt
B) copy  testquestion.txt
C) cp  ~jleonard/testquestion.txt  testquestion.txt
D) /…/fs/jleonard/testquestion.txt   copy
E) get  testquestion.txt  ~jleonard

11.  You get a summer internship with the Save the Turtles
foundations where you are investigating the weight distribution
of green turtle eggs.  After the field work is done, the
following data are given to you for graphing:
Turtle egg number		Weight in grams
1		13.25
2		17.11
3		12.87
.		  .
4370		13.67
Which of the following graph types would be best to
show the results of the egg weight distribution?
A) Pie graph
B) Histogram
C) Bar chart
D) Line graph
E) X-Y scatter plot

12.  A friend comes to you for help with his web page.
Your friend’s web page was working on his machine and
he was able to view the image on his page in his room
on his own PC with either Mozilla, or Internet Explorer.
But, when he went to the computer lab, or the library,
or any other computer, the image would not come up on
the page.  Here’s the source code from his html file:

<body> <div align="Center">Final Exam Test Question<br>
<img src="file:///C:/My%20Work/ /Fall%202005/test1.jpg"
alt="alt" width="700" height="473"> <br> </div> </body>
</html>

Refer to the picture below:

12. According to the HTML code above, where will the browser look for the image file?
A)	A
B)	B
C)	C
D)	D
E)	None of the above

13. Following along from the previous question, where on the picture above SHOULD the
image file be stored?
A)	A
B)	B
C)	C
D)	A or B
E)	None of the above

14. In the spreadsheet above, which of the following would be
the appropriate formula to enter into the active cell so the
total number of species would be calculated?
B) =(A5++B10)
C) +SUM(B3-B11)
D) =SUM(B5:B10)
E) +B5:B11

15. According to the History of the Internet video we have
been watching in class,  which of the following historical
events was the main motivating factor that drove the increase
attention in the USA on science and technology that led to
the funding of the first digital network of computers that
later became the Internet?
A) The “space race” with the Russians
B) The Vietnam War
C) The Chinese Communist Revolution
D) The discovery of the 103rd chemical element
E) The invention of the semiconductor “chip”

16.  According to the reading, How Hackers Break In and
How They are Caught, which of the following was the type
of organization that the hacker broke into?
B) Personal Computer outlet store
C) Defense department
D) Insurance company
E) University

17.  Imagine a fellow classmate comes to you for help.
She says that the Camel’s Hump image on her web page is
not coming up when she goes to view the file in Mozilla.
The source code for her file is as follows:

<BODY BACKGROUND=Sky3.gif>
<CENTER> <H1>My Favorite Mountain</H1>
<IMG SCR= CamelsHump.jpg></BODY> </HTML>

Which of the following best explains why the image is
not visible in Mozilla?
A) Mozilla will not display .jpg files (although IE will).
B) The image filename must be in lower case letters.
C) The server is temporarily down.  Wait a while and try again.
D) The image tag is pointing to the hard drive instead of zoo.
E) There is a spelling/syntax problem in the image tag.

18. According to convention, which of the following files would most likely NOT be an ASCII text file?
A) Numbers.dat
B) Mypage.html
C) Email.txt
D) MyBudget.xls
E) .signature

1. E
2. D
3. A
4. E
5. C
6. D
7. A
8. C
9. D
10. C
11. B
12. A
13. C
14. D
15. A
16. A
17. E
18. D
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