COP-1000 Sample Exam                     Name: _________________________________

General Directions

• Answer the questions in any order
• You can use the Python Reference Card during the quiz
• Ask your instructor if you do not understand a question
• You have the whole period for the exam (75 minutes)
• You may leave when you are finished

Section I – Vocabulary (20 points total – 2 points each)

• Match the term with its definition by writing its letter in the space provided:

Section II – Multiple Choice (60 points total – 3 points each)

• Circle the letter of the best answer to each question.

1. Which of the following is not part of the definition of a computer?
   1. It is a machine.
   2. It stores and manipulates information
   3. It accepts input and produces output
   4. It 's operation is controlled by a changeable program
2. Computer Science is:
   1. the study of what can be computed
   2. the study of computers
   3. the use of computers in scientific research
   4. another phrase for "Information Technology"
3. Magnetic or optical media are generally used for:
   1. main memory
   2. input devices
   3. executing programs
   4. secondary memory
4. Python is an example of a:
   1. high-level programming language
   2. computer
   3. integrated development environment
   4. algorithm
5. A comment in Python is indicated by a:
   1. colon (:)
   2. dollar sign ($)
   3. asterisk (*)
   4. pound sign (#)
6. The goal of the specification phase of the software development process is
   1. to determine what the program should do
   2. to create an algorithm that solves the problem
   3. to make sure that the program does not contain any errors
   4. to continue improving the program to meet user needs
7. The program pattern IPO stands for
   1. interrupt processing organization
   2. inactive program optimization
   3. interactive program only
   4. input process output
8. Identifiers in Python may not contain
   1. letters
   2. spaces
   3. digits
   4. underscore
9. The fragment of code input("Enter a number: ") is best described as:
   1. an expression that returns the result of evaluating what the user types
   2. a complete statement for performing input
   3. a prompt
   4. a syntax error
10. The Python reserved word for obtaining string input from the keyboard is:
    1. in_string
    2. string_input
    3. input_string
    4. raw_input
11. A fruitful function is one that
    1. must be used in a statement by itself
    2. accepts values as parameters
    3. returns a value
    4. Is named after a fruit
12. One disadvantage of using binary floating point representations is that
    1. they can't represent negative numbers
    2. they are usually only approximations
    3. they don't support addition and subtraction
    4. they have a limited range compare to ints
13. Suppose that the variable x has the value 5 and y has the value 10. After executing this statement:
    
        x,y = y,x
    
    what will the values of x and y be, respectively?
    1. 5 and 10
    2. 10 and 5
    3. 10 and 10
    4. 5 and 5
14. This loop is intended to display the integers 0-9, inclusive. What line is missing?
    
      k = 0
      while (k < 10):
        print k
        ???
     
    1. k = 1
    2. k = k + 1
    3. k + 1
    4. 1 + k
15. The number of distinct patterns that can be represented with 8 bits is
    1. 8
    2. 16
    3. 64
    4. 256
16. What is the result of evaluating 7/2?
    1. 1
    2. 2
    3. 3
    4. 5
17. What is the result of evaluating 3 + 4.0
    1. Error
    2. 7
    3. 7.0
    4. None of the above
18. A function that calls itself is a _____ function.
    1. recursive
    2. fruitful
    3. repetetive
    4. reclusive
19. A common programming pattern is called
    1. FIFO (first-in, first-out)
    2. IPO (input-process-output)
    3. GUI (graphical user interface)
    4. UGI (user generated input)
20. This code is intended to call a function discount() if the value of the variable age is not less than 65. What is the correct condition?
    
      if ( ??? ):
        discount()
     
    1. age !< 65
    2. 65 >= age
    3. age >= 65

    4. none of these is correct

Section III – “Hands-on” (20 points total)

• Reboot your computer to ensure access to the printer
• Write a program using the Python 2.5 IDLE as specified in the problem statement
• Put a comment on the first line of the program that includes your name
• It is your responsibility to save your program periodically
• Code the program, correct syntax errors and test it
• When you are satisfied with the program, print it and turn it in

Problem Statement:

Write a program that calculates and displays miles-per-gallon (mpg). The program should accept both miles (m) and gallons (g) from the keyboard. The formula is mpg = m / g. Use a fruitful function for the calculation, and do all input and output from main().