Question 1

Not all arithmetic operations may be performed on pointers. For example, you cannot ________ or ________ a pointer.

Accepted Answer

A) multiply, divide 
B) add, subtract 
C) +=, -= 
D) increment, decrement 
E) None of these 
A) multiply, divide 
B) add, subtract 
C) +=, -= 
D) increment, decrement 
E) None of these A

Question 2

Assuming ptr is a pointer variable, what will the following statement output?

Accepted Answer

A) The value stored in the variable whose address is contained in ptr. 
B) The string "*ptr". 
C) The address of the variable stored in ptr. 
D) The address of the variable whose address is stored in ptr. 
E) None of these 
A) The value stored in the variable whose address is contained in ptr. 
B) The string "*ptr". 
C) The address of the variable stored in ptr. 
D) The address of the variable whose address is stored in ptr. 
E) None of these A

Question 3

What will the following code output?

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 B

Question 4

Look at the following statement:  
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 5

Look at the following statement: 
 
This statement ________.

Accepted Answer

A) is illegal in C++ 
B) will always result in a compiler error 
C) assigns the dereferenced pointer's value, then increments the pointer's address 
D) increments the dereferenced pointer's value by one, then assigns that value 
E) None of these 
A) is illegal in C++ 
B) will always result in a compiler error 
C) assigns the dereferenced pointer's value, then increments the pointer's address 
D) increments the dereferenced pointer's value by one, then assigns that value 
E) None of these

Question 6

Assuming myValues is an array of int values, and index is an int variable, both of the following statements do the same thing.
cout << myValues[index] << endl;
cout << *(myValues + index)<< endl;

Accepted Answer

A) True 
 B)False

Question 7

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 8

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.

Accepted Answer

A) True 
 B)False

Question 9

What will the following code output?

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

Question 10

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 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

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 13

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

Accepted Answer

A) True 
 B)False

Question 14

What will the following code output?

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

Question 15

Look at the following code:  
After this code executes, which of the following statements is true?

Accepted Answer

A) ptr will hold the address of numbers[0]. 
B) ptr will hold the address of the 2nd byte within the element numbers[0]. 
C) ptr will hold the address of numbers[1]. 
D) This code will not compile. 
A) ptr will hold the address of numbers[0]. 
B) ptr will hold the address of the 2nd byte within the element numbers[0]. 
C) ptr will hold the address of numbers[1]. 
D) This code will not compile.

Question 16

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 17

In C++ 11, the ________ key word was introduced to represent the address 0.

Accepted Answer

A) nullptr 
B) NULL 
C) weak_ptr 
D) All of these 
E) None of these 
A) nullptr 
B) NULL 
C) weak_ptr 
D) All of these 
E) None of these

Question 18

If you are using an older compiler that does not support the C++ 11 standard, you should initialize pointers with ________.

Accepted Answer

A) the integer 0, or the value NULL 
B) the null terminator '\0' 
C) a nonzero value 
D) All of these 
E) None of these 
A) the integer 0, or the value NULL 
B) the null terminator '\0' 
C) a nonzero value 
D) All of these 
E) None of these

Question 19

To use any of the smart pointers in C++ 11, you must #include the memory header file with the following directive:
#include <memory>

Accepted Answer

A) True 
 B)False

Question 20

The following statement:

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

Not all arithmetic operations may be performed on pointers. For example, you cannot or a pointer.

Assuming ptr is a pointer variable, what will the following statement output?

What will the following code output?

Look at the following statement: In this statement, what does the word int mean?

Look at the following statement: This statement ________.

Assuming myValues is an array of int values, and index is an int variable, both of the following statements do the same thing. cout << myValues[index] << endl; cout << *(myValues + index)<< endl;

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

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.

What will the following code output?

Which statement displays the address of the variable num1?

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

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

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

What will the following code output?

Look at the following code: After this code executes, which of the following statements is true?

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

In C++ 11, the ________ key word was introduced to represent the address 0.

If you are using an older compiler that does not support the C++ 11 standard, you should initialize pointers with ________.

To use any of the smart pointers in C++ 11, you must #include the memory header file with the following directive: #include <memory>

The following statement:

Introduction to Computers and Programming

Introduction to C Plus Plus

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays

Searching and Sorting Arrays

Characters, C-Strings, and More About the String Class

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 9: Pointers

Not all arithmetic operations may be performed on pointers. For example, you cannot ________ or ________ a pointer.

Assuming ptr is a pointer variable, what will the following statement output?

What will the following code output?

Look at the following statement: In this statement, what does the word int mean?

Look at the following statement: This statement ________.

Assuming myValues is an array of int values, and index is an int variable, both of the following statements do the same thing. cout << myValues[index] << endl; cout << *(myValues + index)<< endl;

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

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.

What will the following code output?

Which statement displays the address of the variable num1?

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

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

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

What will the following code output?

Look at the following code: After this code executes, which of the following statements is true?

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

In C++ 11, the ________ key word was introduced to represent the address 0.

If you are using an older compiler that does not support the C++ 11 standard, you should initialize pointers with ________.

To use any of the smart pointers in C++ 11, you must #include the memory header file with the following directive: #include <memory>

The following statement:

Introduction to Computers and Programming

Introduction to C Plus Plus

Expressions and Interactivity

Making Decisions

Loops and Files

Functions

Arrays

Searching and Sorting Arrays

Characters, C-Strings, and More About the String Class

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

Not all arithmetic operations may be performed on pointers. For example, you cannot or a pointer.