Problem Solving with Computers Pre-Test Questions
Course Introduction
This course introduces students to systematic approaches for analyzing and solving problems using computers. Emphasizing computational thinking, algorithm development, and basic programming concepts, students will learn how to break down complex problems into manageable components, design logical solutions, and implement these solutions through coding in a high-level programming language. Topics include data representation, decision structures, iteration, and introductory debugging techniques. The course provides foundational skills in using computers as tools for problem solving, preparing students for more advanced courses in computer science and related fields.
Recommended Textbook
Starting Out with Python 4th Edition by Tony Gaddis
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13 Chapters
533 Verified Questions
533 Flashcards
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Chapter 1: Introduction to Computers and Programming
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Sample Questions
Q1) The term ___________ refers to all the physical devices that make up a computer.
Answer: hardware
Q2) What is the largest value that can be stored in one byte?
A) 255
B) 128
C) 8
D) 65535
Answer: A
Q3) Which type of error prevents the program from running?
A) syntax
B) human
C) grammatical
D) logical
Answer: A
Q4) Programs are commonly referred to as
A) system software
B) software
C) application software
D) utility programs
Answer: B
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Chapter 2: Input, Processing, and Output
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Sample Questions
Q1) The line continuation character is a A) #
B) % C) &
D) \
Answer: D
Q2) A(n)__________ is a name that represents a value stored in the computer's memory.
Answer: variable
Q3) A(n)__________ character is a special character that is preceded with a backslash (\),appearing inside a string literal.
Answer: escape
Q4) Since a named constant is just a variable,it can change any time during a program's execution.
A)True
B)False
Answer: False
Q5) A(n)__________ is a single task that the program must perform in order to satisfy the customer.
Answer: software requirement
4
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Chapter 3: Decision Structures and Boolean Logic
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40 Flashcards
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Sample Questions
Q1) Nested decision statements are one way to test more than one condition.
A)True
B)False
Answer: True
Q2) In a decision structure,the action is ___________ executed because it is performed only when a specific condition is true.
Answer: conditionally
Q3) What is the result of the following Boolean expression,given that x = 5,y = 3,and z= 8?
Not (x < y or z > x)and y < z
A) True
B) False
C) 8
D) 5
Answer: B
Q4) Short -circuit evaluation is only performed with the not operator.
A)True
B)False
Answer: False
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Chapter 4: Repetition Structures
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Sample Questions
Q1) What will be displayed after the following code is executed? total \( =0 \) for count in range \( (4,6): \)
\(\quad\)total \( += \) count
\(\quad\)print (total)
Q2) In Python,you would use the __________ statement to write a count-controlled loop.
Q3) A(n)__________ validation loop is sometimes called an error trap or an error handler.
Q4) The while loop is known as a(n)__________ loop because it tests the condition before performing an iteration.
Q5) A(n)___________ structure causes a set of statements to execute repeatedly.
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Chapter 5: Functions
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Sample Questions
Q1) The code for a function is known as a function ___________.
Q2) The __________ design technique can be used to break down an algorithm into functions.
A) subtask
B) block
C) top-down
D) simplification
Q3) The function header marks the beginning of the function definition.
A)True
B)False
Q4) Arguments are passed by __________ to the corresponding parameter variables in a function.
Q5) What is a group of statements that exists within a program for the purpose of performing a specific task?
A) a function
B) a subtask
C) a process
D) a subprocess
Q6) The return values of the trigonometric functions in Python are in __________.
Q7) To refer to a function in a module,Python uses ___________ notation.
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Chapter 6: Files and Exceptions
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Sample Questions
Q1) Python allows the programmer to work with text and number files.
A)True
B)False
Q2) Which method could be used to strip specific characters from the end of a string?
A) estrip
B) rstrip
C) strip
D) remove
Q3) A(n)___________ block includes one or more statements that can potentially raise an exception.
Q4) When a program needs to save data for later use,it writes the data in a(n)___________.
Q5) An exception handler is a piece of code that is written using the try/except statement.
A)True
B)False
Q6) A filename __________ is a short sequence of characters that appear at the end of a filename,preceded by a period.
Q7) A(n)__________ file contains data that has not been converted to text.
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Chapter 7: Lists and Tuples
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Sample Questions
Q1) What is the first negative index in a list?
A) 0
B) -1
C) -0
D) the size of the list minus 1
Q2) The ___________ function can be used to convert a list to a tuple.
Q3) In order to create graphs using the matplotlib package,you need to import the pyplot module.
A)True
B)False
Q4) In order to create a graph in Python,you need to include
A) import matplotlib
B) import pyplot
C) import matplotlib.pyplot
D) import matplotlib
Import pyplot
Q5) Tuples are __________ sequences which means that once a tuple is created,it cannot be changed.
Q6) A(n)__________ is an object that holds multiple items of data.
Q7) A(n)___________ is a span of items that are taken from a sequence.
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Chapter 8: More About Strings
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Sample Questions
Q1) You cannot use a for loop to iterate over the characters in a string.
A)True
B)False
Q2) The __________ method returns True if the string contains only numeric digits.
Q3) The following expression is valid: string[i] = 'i'
A)True
B)False
Q4) What is the first negative index in a string?
A) 0
B) -1
C) -0
D) the size of the string minus one
Q5) The __________ method returns a copy of the string with all the alphabetic letters converted to lower case.
Q6) Each character in a string has a(n)__________ which specifies its position in the string.
Q7) The __________ operator can be used to determine whether one string is contained in another string.
Q8) The __________ method returns the list of the words in a string.
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Chapter 9: Dictionaries and Sets
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Sample Questions
Q1) The elements in a dictionary are not stored in a specific order. Therefore,a dictionary is not a(n)___________.
Q2) What is the number of the first index in a dictionary?
A) 0
B) 1
C) the size of the dictionary minus one
D) Dictionaries are not indexed by number.
Q3) The __________ method clears the contents of a dictionary.
Q4) The __________ of two sets is a set that contains all the elements of both sets.
Q5) Which method can be used to add a group of elements to a set?
A) add
B) addgroup
C) update
D) addset
Q6) Each element in a(n)__________ has two parts: a key and a value.
Q7) What does the get method do if the specified key is not found in the dictionary?
A) It throws an exception.
B) It does nothing.
C) It returns a default value.
D) You cannot use the get method to specify a key.
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Chapter 10: Classes and Object-Oriented Programming
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Sample Questions
Q1) A method that returns a value from a class's attribute but does not change it is known as a(n)__________ method.
Q2) Object-oriented programming allows us to hide the object's data attributes from code that is outside the object.
A)True
B)False
Q3) Which method is automatically called when you pass an object as an argument to the print function?
A) __state__
B) __obj__
C) __str__
D) __init__
Q4) Which section in the UML holds the list of the class's data attributes?
A) first section
B) second section
C) third section
D) fourth section
Q5) The instance attributes are created by the __________ parameter and they belong to a specific instance of the class.
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Chapter 11: Inheritance
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Sample Questions
Q1) Which of the following is the correct syntax for defining a class,table,which inherits from the furniture class?
A) class furniture[table]:
B) class table.furniture:
C) class furniture(table):
D) class table(furniture):
Q2) When a class inherits another class,it is required to use all the data attributes and methods of the superclass.
A)True
B)False
Q3) The __________ function determines whether or not an object is an instance of a specific class or an instance of a subclass of that class.
Q4) Given the following line of code,in a UML diagram,what would the open arrowhead point to?
Class Celery(Vegetable):
A) Celery
B) Vegetable
C) class
D) Celery(Vegetable)
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Chapter 12: Recursion
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Sample Questions
Q1) When,in a recursive solution,function A calls function B which,in turn,calls function A,this is known as indirect recursion.
A)True
B)False
Q2) Recursion is
A) never required to solve a problem
B) required to solve certain mathematical problems
C) sometimes required to solve string problems
D) required to solve some problems
Q3) A problem can normally be solved with recursion if it can be broken down into smaller problems that are identical in structure to the overall problem.
A)True
B)False
Q4) A function is called from the main function and then it calls itself five times. The depth of recursion is __________.
Q5) A base case is not necessary for all recursive algorithms.
A)True
B)False
Q6) Recursive function calls are __________ efficient than loops.
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Chapter 13: Gui Programming
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Sample Questions
Q1) A(n)___________ is a container that can hold other widgets and organize the widgets in a window.
Q2) An info dialog box is a window that displays a message to the user and has an OK button which,when clicked,closes the dialog box.
A)True
B)False
Q3) Programs that use tkinter do not always run reliably in IDLE.
A)True
B)False
Q4) In a GUI environment most interactions are done through small windows known as __________ that display information and allow the user to perform actions.
A) input boxes
B) windows
C) dialog boxes
D) message boxes
Q5) The point (0,0)represents the same place in a window with the Canvas widget as with turtle graphics.
A)True
B)False
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