Problem Solving with C++ Exam Preparation Guide
Course Introduction
This course introduces students to the fundamental concepts of programming and computational problem-solving using the C++ language. Through a series of hands-on assignments and projects, students will learn to analyze problems, design algorithms, and implement solutions efficiently in C++. Topics covered include variables and data types, control structures, functions, arrays, pointers, and an introduction to object-oriented programming. Emphasis is placed on logical thinking, developing robust code, and understanding the underlying mechanisms of how C++ executes programs. This course provides a solid foundation for further studies in computer science and engineering.
Recommended Textbook
Starting Out with C++ from Control Structures to Objects 9th Edition by Tony Gaddis
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21 Chapters
949 Verified Questions
949 Flashcards
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2
Chapter 1: Introduction to Computers and Programming
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Sample Questions
Q1) The purpose of a memory address is:
A) to identify the location of a byte in memory
B) to prevent multitasking
C) to obtain an algorithm
D) to improve the speed of processing
E) None of these
Answer: A
Q2) A computer stores a program while it is running
A) in main memory
B) on a hard disk
C) on the computer monitor
D) in the CPU
E) None of these
Answer: A
Q3) In C++, key words are written in all lowercase letters.
A)True
B)False
Answer: True
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3
Chapter 2: Introduction to C
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Sample Questions
Q1) What will be the output after the following lines of code execute?
bool choice; choice = true;
cout << "Your choice is " << choice << endl;
A) true
B) Your choice is true
C) Your choice is 1
D) Your choice is choice
E) None of these
Answer: C
Q2) Data items whose values do not change while the program is running are A) literals
B) variables
C) characters
D) integers
E) None of these
Answer: A
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Page 4
Chapter 3: Expressions and Interactivity
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Sample Questions
Q1) If you want to know the length of the string that is stored in a string object, you can call the object's size member function.
A)True
B)False
Answer: False
Q2) The function pow(x, y), requires which header file?
A) cstdlib
B) cstring
C) iostream
D) cmath
E) iomanip
Answer: D
Q3) This manipulator forces cout to print digits in fixed-point notation:
A) setprecision(2)
B) setw(2)
C) fixed
D) setfixed(2)
E) None of these
Answer: C
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Page 5
Chapter 4: Making Decisions
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Sample Questions
Q1) The default section is required in a switch statement.
A)True
B)False
Q2) This operator takes an operand and reverses its truth or Falsehood: A) !&
B) ||
C) =!
D) !
E) None of these
Q3) If the expression on the left side of the following is true, the expression on the right side will not be checked. (a > = b) || (c == d)
A)True
B)False
Q4) The following code correctly determines whether x contains a value in the range of 0 through 100, inclusive. if (x > 0 && <= 100)
A)True
B)False
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Chapter 5: Loops and Files
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60 Flashcards
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Sample Questions
Q1) What will the following code display? int number = 6; ++number;
cout << number << endl;
A) 6
B) 5
C) 7
D) 0
Q2) An initialization expression may be omitted from the for loop if no initialization is required.
A)True
B)False
Q3) What will the following code display? int number = 6; number++;
cout << number << endl;
A) 6
B) 5
C) 7
D) 0
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Chapter 6: Functions
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Sample Questions
Q1) Which line in the following program contains the prototype showDub function?
1 #include <iostream>
2 using namespace std;
3 void showDub(int);
4 int main()
5 {
6 \(\quad\)int x = 2;
7 \(\quad\)showDub(x);
8 \(\quad\)cout << x << endl;
9 \(\quad\)return 0;
10 }
11 void showDub(int num)
12 {
13 \(\quad\)cout << (num * 2) << endl;
14 }
A) line 3
B) line 4
C) line 7
D) line 11
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8
Chapter 7: Arrays and Vectors
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Sample Questions
Q1) Arrays must be __________ at the time they are __________.
A) sized, executed
B) re-scoped, deleted
C) initialized, declared
D) compiled, typed
E) None of these
Q2) An array with no elements is
A) legal in C++
B) illegal in C++
C) automatically furnished with one element whose value is set to zero
D) automatically furnished with one element, the null terminator
E) None of these
Q3) Assume array1 and array2 are the names of two arrays. To assign the contents of array2 to array1, you would use the following statement: array1 = array2;
A)True
B)False
Q4) C++ limits the number of array dimensions to two.
A)True
B)False
Page 9
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Chapter 8: Searching and Sorting Arrays
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Sample Questions
Q1) The advantage of a linear search is its
A) complexity
B) efficiency
C) simplicity
D) speed
E) None of these
Q2) The following is the pseudocode for which type of algorithm?
For maxElement = each subscript in the array, from the last to the first
For index = 0 To maxElement - 1
If array[index] > array[index + 1]
Swap array[index] with array[index + 1]
End If End For End For
A) bubble sort
B) binary sort
C) bubble search
D) selection sort
E) None of these
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Chapter 9: Pointers
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Sample Questions
Q1) A pointer can be used as a function argument, giving the function access to the original argument.
A)True B)False
Q2) C++ does not perform array bounds checking, making it possible for you to assign a pointer the address of an element out of the boundaries of an array.
A)True B)False
Q3) Select all that apply. Of the following, which statements have the same meaning?
A) int *ptr = nullptr;
B) int ptr = nullptr;
C) *int ptr = nullptr;
D) int* ptr = nullptr;
E) int ptr* = nullptr;
Q4) With pointer variables you can access but not modify data in other variables. A)True B)False
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11
Chapter 10: Characters, C-Strings, and More About the String Class
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Sample Questions
Q1) Which of the following defines an array of C-strings that will hold 49 characters and the null terminator?
A) char [49];
B) char str[50];
C) char[50] str;
D) character str[50];
E) None of these
Q2) The __________ function will change a character argument from lowercase to uppercase.
A) isupper
B) toupper
C) tolarge
D) fromlower
E) None of these
Q3) The itoa function is similar to atoi but it works in reverse.
A)True
B)False
Q4) The ftoa function converts a floating-point value to an ASCII value.
A)True
B)False
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Chapter 11: Structured Data
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Sample Questions
Q1) The name of a structure is referred to as its
A) data type
B) argument
C) parameter
D) tag
E) None of these
Q2) If Circle is a structure tag, then the following statement can be the header line for a function that __________. Circle doSomething(Circle c2)
A) determines and returns the area of a circle
B) takes a Circle structure as a parameter, does something, and returns a Circle structure
C) operates on a constant reference to a Circle structure
D) takes two Circle parameters and does something
E) None of these
Q3) Before a structure can be used it must be
A) declared
B) dereferenced
C) initialized
D) All of these
E) None of these
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Chapter 12: Advanced File Operations
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Sample Questions
Q1) When you store data in a variable, it is automatically saved in a file.
A)True
B)False
Q2) All stream objects have __________ which indicate the position of the stream.
A) error state bits
B) condition statements
C) markers
D) intrinsic error messages
E) None of these
Q3) Which of the following means accessing information from a file non-sequentially?
A) linear access
B) incremented acces
C) random access
D) protected access
E) None of these
Q4) If a file already exists, you can open it with the flags ios::in | ios::out to preserve its contents.
A)True B)False
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Chapter 13: Introduction to Classes
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Sample Questions
Q1) Destructor functions are often used to free memory that was allocated by the object.
A)True
B)False
Q2) In a procedural program you typically have __________ stored in a collection of variables and a set of __________ that perform operations on the data.
A) numbers, arguments
B) parameters, arguments
C) strings, operators
D) data, functions
E) None of these
Q3) When an object is defined without an argument list for its constructor, the compiler automatically calls the object's default constructor.
A)True
B)False
Q4) Constructor functions are often used to allocate memory that will be needed by the object.
A)True
B)False
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Chapter 14: More About Classes
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Sample Questions
Q1) It is a good idea to make a copy constructor's parameters __________ by specifying the __________ key word in the parameter list.
A) inline, inline
B) static, static
C) constant, const
D) global, global
E) None of these
Q2) In C++11 an rvalue reference is a reference variable that can refer only to temporary objects.
A)True
B)False
Q3) You can overload the conditional operator to make it function as an unconditional operator.
A)True
B)False
Q4) By default, when an object is assigned to another object, each member of one object is copied to its counterpart in the other object.
A)True
B)False
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Chapter 15: Inheritance, Polymorphism, and Virtual Functions
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Sample Questions
Q1) Select all that apply. In an inheritance situation, the new class that you create from an existing class is known as the
A) derived class
B) inheritor
C) child class
D) parental class
E) None of these
Q2) Select all that apply. Which of the following constructors cannot be inherited through constructor inheritance?
A) the default constructor
B) the virtual constructor
C) the move constructor
D) the copy constructor
E) the grand constructor
Q3) In an inheritance situation, you may not pass arguments to a base class constructor.
A)True
B)False
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Page 17
Chapter 16: Exceptions and Templates
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36 Flashcards
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Sample Questions
Q1) When an error occurs, an exception is A) created
B) thrown C) passed
D) ignored
E) None of these
Q2) If an exception is not caught, it is stored for later use.
A)True
B)False
Q3) When the __________ operator fails to allocate memory, C++ throws a bad_alloc exception.
A) new
B) alloc C) catch
D) None of these
Q4) The line containing a throw statement is known as the throw point.
A)True
B)False
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Page 18
Chapter 17: The Standard Template Library
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Sample Questions
Q1) An iterator of the iterator type that gives you read/write access to the element to which the iterator points is known as a(n)
A) immutable iterator
B) mutable iterator
C) auto iterator
D) range iterator
E) None of these
Q2) The difference between the unordered_multimap class and the multimap class is that
A) the unordered_multimap class uses the binary tree data structure for internal storage while the multimap class uses a hash table
B) the multimap class uses the binary tree data structure for internal storage while the unordered_multimap class uses a hash table
C) the keys in the unordered_multimap class are sorted while the keys in the multimap class are in no particular order
D) None of these
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19
Chapter 18: Linked Lists
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Sample Questions
Q1) To build a list initally, you can use a(n) __________ routine.
A) build
B) append
C) constructor
D) initialization
E) None of these
Q2) In an insertion or deletion routine:
How many pointers are you required to create for use during the traversal process?
A) two: one for the node under inspection and one for the previous node
B) two: one for the node under inspection and one for the next node
C) one: for the node being inserted or deleted
D) three: one for the node under inspection, one for the next node, and one for the following node
Q3) Select all that apply. A __________ list contains pointers to the nodes before it and after it.
A) multi linked
B) circular linked
C) singly linked
D) doubly linked
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Page 20
Chapter 19: Stacks and Queues
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Sample Questions
Q1) Select all that apply. Data structures that can dynamically store elements and can grow and shrink in size are
A) stacks
B) arrays
C) queues
D) deques
Q2) For a compiler that is older than C++11 it is necessary to put spaces between the angled brackets that appear next to each other when defining a stack.
A)True
B)False
Q3) When an element is added to a queue, it is added to the rear. When an element is removed from the queue, it is removed from the
A) rear
B) middle
C) front
D) depends on how the programmer writes the code
E) None of these
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Chapter 20: Recursion
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Sample Questions
Q1) A problem can be solved with recursion if it can be broken down into successive smaller problems that are the same as the overall problem.
A)True
B)False
Q2) A recursive function is designed to terminate when it reaches its
A) return statement
B) closing curly brace
C) last parameter
D) base case
E) None of these
Q3) Select all that apply. Which of the following problems can be solved using recursion?
A) computing factorials
B) finding the greatest common divisor of two numbers
C) doing a Binary Search
D) multiplying two numbers
E) traversing a linked list
Q4) In a recursive solution, the base case is always the first case to be called.
A)True
B)False
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Chapter 21: Binary Trees
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Sample Questions
Q1) The shape of a binary tree is
A) always triangular
B) always balanced
C) determined by the programmer
D) determined by the order in which values are inserted
E) None of these
Q2) The PreOrder method of traversing a binary tree involves processing the node's data, traversing the node's left subtree, and then traversing the node's right subtree.
A)True
B)False
Q3) Binary trees can be divided into A) branches
B) leaves
C) subtrees
D) sawdust
E) None of these
Q4) A subtree is an entire branch of a tree from one particular node down.
A)True
B)False
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