Question 1

With pointer variables, you can __________ manipulate data stored in other variables.

Accepted Answer

A)  never 
B)  seldom 
C)  indirectly 
D)  All of these 
E)  None of these 
A)  never 
B)  seldom 
C)  indirectly 
D)  All of these 
E)  None of these C

Question 2

What will the following code output? int number = 22;
Int *var = &number;
Cout << var << endl;

Accepted Answer

A)  The address of the number variable 
B)  22 
C)  An asterisk followed by 22 
D)  An asterisk followed by the address of the number variable 
A)  The address of the number variable 
B)  22 
C)  An asterisk followed by 22 
D)  An asterisk followed by the address of the number variable A

Question 3

What will the following code output? int *numbers = new int[5];
For (int i = 0; i <= 4; i++)
*(numbers + i) = i;
Cout << numbers[2] << endl;

Accepted Answer

A)  Five memory addresses 
B)  0 
C)  3 
D)  2 
E)  1 
A)  Five memory addresses 
B)  0 
C)  3 
D)  2 
E)  1 D

Question 4

Which of the following statements deletes memory that has been dynamically allocated for an array?

Accepted Answer

A)  int array = delete memory; 
B)  int delete[ ]; 
C)  delete [] array; 
D)  new array = delete; 
E)  None of these 
A)  int array = delete memory; 
B)  int delete[ ]; 
C)  delete [] array; 
D)  new array = delete; 
E)  None of these

Question 5

An array name is a pointer constant because the address stored in it cannot be changed during runtime.

Accepted Answer

A) True 
 B)False

Question 6

Use the delete operator only on pointers that were

Accepted Answer

A)  never used 
B)  not correctly initialized 
C)  created with the new operator 
D)  dereferenced inappropriately 
E)  None of these 
A)  never used 
B)  not correctly initialized 
C)  created with the new operator 
D)  dereferenced inappropriately 
E)  None of these

Question 7

When you work with a dereferenced pointer, you are actually working with:

Accepted Answer

A)  a variable whose memory has been deallocated 
B)  a copy of the value pointed to by the pointer variable 
C)  the actual value of the variable whose address is stored in the pointer variable 
D)  All of these 
E)  None of these 
A)  a variable whose memory has been deallocated 
B)  a copy of the value pointed to by the pointer variable 
C)  the actual value of the variable whose address is stored in the pointer variable 
D)  All of these 
E)  None of these

Question 8

A pointer with the value 0 (zero) is called a NULL pointer.

Accepted Answer

A) True 
 B)False

Question 9

Every byte in the computer's memory is assigned a unique

Accepted Answer

A)  pointer 
B)  address 
C)  dynamic allocation 
D)  name 
E)  None of these 
A)  pointer 
B)  address 
C)  dynamic allocation 
D)  name 
E)  None of these

Question 10

Look at the following statement. int *ptr;
In this statement, what does the word int mean?

Accepted Answer

A)  the variable named *ptr will store an integer value 
B)  the variable named *ptr will store an asterisk and an integer value 
C)  ptr is a pointer variable that will store the address of an integer variable 
D)  All of these 
E)  None of these 
A)  the variable named *ptr will store an integer value 
B)  the variable named *ptr will store an asterisk and an integer value 
C)  ptr is a pointer variable that will store the address of an integer variable 
D)  All of these 
E)  None of these

Question 11

When this is placed in front of a variable name, it returns the address of that variable.

Accepted Answer

A)  asterisk ( * ) 
B)  conditional operator 
C)  ampersand ( & ) 
D)  semicolon ( ; ) 
E)  None of these 
A)  asterisk ( * ) 
B)  conditional operator 
C)  ampersand ( & ) 
D)  semicolon ( ; ) 
E)  None of these

Question 12

The statement int *ptr = new int;

Accepted Answer

A)  results in a compiler error. 
B)  assigns an integer less than 32767 to the variable named ptr. 
C)  assigns an address to the variable named ptr. 
D)  creates a new pointer named int. 
E)  None of these 
A)  results in a compiler error. 
B)  assigns an integer less than 32767 to the variable named ptr. 
C)  assigns an address to the variable named ptr. 
D)  creates a new pointer named int. 
E)  None of these

Question 13

The contents of pointer variables may be changed with mathematical statements that perform:

Accepted Answer

A)  all mathematical operations that are legal in C++ 
B)  multiplication and division 
C)  addition and subtraction 
D)  b and c 
E)  None of these 
A)  all mathematical operations that are legal in C++ 
B)  multiplication and division 
C)  addition and subtraction 
D)  b and c 
E)  None of these

Question 14

Which statement displays the address of the variable num1?

Accepted Answer

A) cout > &num1; D) cout << &num1; E) None of these A) cout > &num1; D) cout << &num1; E) None of these

Question 15

The ______ and _______ operators can be used to increment or decrement a pointer variable.

Accepted Answer

A)  addition, subtraction 
B)  modulus, division 
C)  ++, -- 
D)  All of these 
E)  None of these 
A)  addition, subtraction 
B)  modulus, division 
C)  ++, -- 
D)  All of these 
E)  None of these

Question 16

With pointer variables you can access, but you cannot modify, data in other variables.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements is not valid C++ code?

Accepted Answer

A)  int ptr = &num1; 
B)  int ptr = int *num1; 
C)  float num1 = &ptr2; 
D)  All of these are valid 
E)  All of these are invalid 
A)  int ptr = &num1; 
B)  int ptr = int *num1; 
C)  float num1 = &ptr2; 
D)  All of these are valid 
E)  All of these are invalid

Question 18

It is legal to subtract a pointer variable from another pointer variable.

Accepted Answer

A) True 
 B)False

Question 19

What will the following statement output? cout << &num1;

Accepted Answer

A)  The value stored in the variable called num1. 
B)  The memory address of the variable called num1. 
C)  The number 1. 
D)  The string "&num1". 
E)  None of these 
A)  The value stored in the variable called num1. 
B)  The memory address of the variable called num1. 
C)  The number 1. 
D)  The string "&num1". 
E)  None of these

Question 20

The statement int *ptr;
Has the same meaning as

Accepted Answer

A)  int ptr; 
B)  *int ptr; 
C)  int ptr*; 
D)  int* ptr; 
E)  None of these 
A)  int ptr; 
B)  *int ptr; 
C)  int ptr*; 
D)  int* ptr; 
E)  None of these

With pointer variables, you can __________ manipulate data stored in other variables.

What will the following code output? int number = 22; Int *var = &number; Cout << var << endl;

What will the following code output? int numbers = new int[5]; For (int i = 0; i <= 4; i++) (numbers + i) = i; Cout << numbers[2] << endl;

Which of the following statements deletes memory that has been dynamically allocated for an array?

An array name is a pointer constant because the address stored in it cannot be changed during runtime.

Use the delete operator only on pointers that were

When you work with a dereferenced pointer, you are actually working with:

A pointer with the value 0 (zero) is called a NULL pointer.

Every byte in the computer's memory is assigned a unique

Look at the following statement. int *ptr; In this statement, what does the word int mean?

When this is placed in front of a variable name, it returns the address of that variable.

The statement int *ptr = new int;

The contents of pointer variables may be changed with mathematical statements that perform:

Which statement displays the address of the variable num1?

The and _ operators can be used to increment or decrement a pointer variable.

With pointer variables you can access, but you cannot modify, data in other variables.

Which of the following statements is not valid C++ code?

It is legal to subtract a pointer variable from another pointer variable.

What will the following statement output? cout << &num1;

The statement int *ptr; Has the same meaning as

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays

Searching and Sorting Arrays

Structured Data

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Exam 10: Characters, C++-Strings, and More About the String Class

With pointer variables, you can __________ manipulate data stored in other variables.

What will the following code output? int number = 22; Int *var = &number; Cout << var << endl;

What will the following code output? int *numbers = new int[5]; For (int i = 0; i <= 4; i++) *(numbers + i) = i; Cout << numbers[2] << endl;

Which of the following statements deletes memory that has been dynamically allocated for an array?

An array name is a pointer constant because the address stored in it cannot be changed during runtime.

Use the delete operator only on pointers that were

When you work with a dereferenced pointer, you are actually working with:

A pointer with the value 0 (zero) is called a NULL pointer.

Every byte in the computer's memory is assigned a unique

Look at the following statement. int *ptr; In this statement, what does the word int mean?

When this is placed in front of a variable name, it returns the address of that variable.

The statement int *ptr = new int;

The contents of pointer variables may be changed with mathematical statements that perform:

Which statement displays the address of the variable num1?

The ______ and _______ operators can be used to increment or decrement a pointer variable.

With pointer variables you can access, but you cannot modify, data in other variables.

Which of the following statements is not valid C++ code?

It is legal to subtract a pointer variable from another pointer variable.

What will the following statement output? cout << &num1;

The statement int *ptr; Has the same meaning as

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays

Searching and Sorting Arrays

Structured Data

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

What will the following code output? int numbers = new int[5]; For (int i = 0; i <= 4; i++) (numbers + i) = i; Cout << numbers[2] << endl;

The and _ operators can be used to increment or decrement a pointer variable.