Question 1

Look at the following statement: sum += *array++;
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 2

When the less than ( < ) operator is used between two pointer variables, the expression is testing whether

Accepted Answer

A)  the value pointed to by the first is less than the value pointed to by the second 
B)  the value pointed to by the first is greater than the value pointed to by the second 
C)  the address of the first variable comes before the address of the second variable in the computer's memory 
D)  the first variable was declared before the second variable 
E)  None of these 
A)  the value pointed to by the first is less than the value pointed to by the second 
B)  the value pointed to by the first is greater than the value pointed to by the second 
C)  the address of the first variable comes before the address of the second variable in the computer's memory 
D)  the first variable was declared before the second variable 
E)  None of these

Question 3

What does the following statement do? double *num2;

Accepted Answer

A)  Declares a double variable named num2. 
B)  Declares and initializes an pointer variable named num2. 
C)  Initializes a variable named *num2. 
D)  Declares a pointer variable named num2. 
E)  None of these 
A)  Declares a double variable named num2. 
B)  Declares and initializes an pointer variable named num2. 
C)  Initializes a variable named *num2. 
D)  Declares a pointer variable named num2. 
E)  None of these

Question 4

A pointer variable may be initialized with

Accepted Answer

A)  any non-zero integer value. 
B)  any address in the computer's memory. 
C)  an address less than 0 
D)  a and c only. 
E)  None of these. 
A)  any non-zero integer value. 
B)  any address in the computer's memory. 
C)  an address less than 0 
D)  a and c only. 
E)  None of these.

Question 5

Look at the following code. int numbers[] = {0, 1, 2, 3, 4 };
Int *ptr = numbers;
Ptr++;
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 6

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

Question 7

If a variable uses more than one byte of memory, for pointer purposes its address is:

Accepted Answer

A)  the address of the last byte of storage. 
B)  the average of the addresses used to store the variable. 
C)  the address of the first byte of storage. 
D)  general delivery. 
E)  None of these. 
A)  the address of the last byte of storage. 
B)  the average of the addresses used to store the variable. 
C)  the address of the first byte of storage. 
D)  general delivery. 
E)  None of these.

Question 8

Dynamic memory allocation occurs

Accepted Answer

A)  when a new variable is created by the compiler 
B)  when a new variable is created at runtime 
C)  when a pointer fails to dereference the right variable 
D)  when a pointer is assigned an incorrect address 
E)  None of these 
A)  when a new variable is created by the compiler 
B)  when a new variable is created at runtime 
C)  when a pointer fails to dereference the right variable 
D)  when a pointer is assigned an incorrect address 
E)  None of these

Question 9

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 10

The ampersand (&) is used to dereference a pointer variable in C++.

Accepted Answer

A) True 
 B)False

Question 11

The _________ , also known as the address operator, returns the memory address of a variable.

Accepted Answer

A)  asterisk ( * ) 
B)  ampersand ( & ) 
C)  percent sign (%) 
D)  exclamation point ( ! ) 
E)  None of these 
A)  asterisk ( * ) 
B)  ampersand ( & ) 
C)  percent sign (%) 
D)  exclamation point ( ! ) 
E)  None of these

Question 12

The statement cin >> *num3;

Accepted Answer

A)  stores the keyboard input into the variable num3. 
B)  stores the keyboard input into the pointer called num3. 
C)  is illegal in C++. 
D)  stores the keyboard input into the variable pointed to by num3. 
E)  None of these. 
A)  stores the keyboard input into the variable num3. 
B)  stores the keyboard input into the pointer called num3. 
C)  is illegal in C++. 
D)  stores the keyboard input into the variable pointed to by num3. 
E)  None of these.

Question 13

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

Question 14

A pointer variable is designed to store

Accepted Answer

A)  any legal C++ value. 
B)  only floating-point values. 
C)  a memory address. 
D)  an integer. 
E)  None of these 
A)  any legal C++ value. 
B)  only floating-point values. 
C)  a memory address. 
D)  an integer. 
E)  None of these

Question 15

Assuming ptr is a pointer variable, what will the following statement output? cout << *ptr;

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.

Question 16

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 17

These can be used as pointers.

Accepted Answer

A)  Array names 
B)  Numeric constants 
C)  Punctuation marks 
D)  All of these 
E)  None of these 
A)  Array names 
B)  Numeric constants 
C)  Punctuation marks 
D)  All of these 
E)  None of these

Question 18

When you pass a pointer as an argument to a function, you must

Accepted Answer

A) redeclare the pointer variable in the function call B) dereference the pointer variable in the function prototype C) use the #include statement D) not dereference the pointer in the function's body E) None of these A) redeclare the pointer variable in the function call B) dereference the pointer variable in the function prototype C) use the #include statement D) not dereference the pointer in the function's body E) None of these

Question 19

When using the new operator with an older compiler, it is good practice to:

Accepted Answer

A)  test the pointer for the NULL address 
B)  use a preprocessor directive 
C)  clear the data from the old operator 
D)  All of these 
E)  None of these 
A)  test the pointer for the NULL address 
B)  use a preprocessor directive 
C)  clear the data from the old operator 
D)  All of these 
E)  None of these

Question 20

A function may return a pointer, but the programmer must ensure that the pointer

Accepted Answer

A)  still points to a valid object after the function ends 
B)  has not been assigned an address 
C)  was received as a parameter by the function 
D)  has not previously been returned by another function 
E)  None of these 
A)  still points to a valid object after the function ends 
B)  has not been assigned an address 
C)  was received as a parameter by the function 
D)  has not previously been returned by another function 
E)  None of these

Look at the following statement: sum += *array++; This statement...

When the less than ( < ) operator is used between two pointer variables, the expression is testing whether

What does the following statement do? double *num2;

A pointer variable may be initialized with

Look at the following code. int numbers[] = {0, 1, 2, 3, 4 }; Int *ptr = numbers; Ptr++; After this code executes, which of the following statements is true?

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

If a variable uses more than one byte of memory, for pointer purposes its address is:

Dynamic memory allocation occurs

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 ampersand (&) is used to dereference a pointer variable in C++.

The _________ , also known as the address operator, returns the memory address of a variable.

The statement cin >> *num3;

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

A pointer variable is designed to store

Assuming ptr is a pointer variable, what will the following statement output? cout << *ptr;

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.

These can be used as pointers.

When you pass a pointer as an argument to a function, you must

When using the new operator with an older compiler, it is good practice to:

A function may return a pointer, but the programmer must ensure that the pointer

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

Look at the following statement: sum += *array++; This statement...

When the less than ( < ) operator is used between two pointer variables, the expression is testing whether

What does the following statement do? double *num2;

A pointer variable may be initialized with

Look at the following code. int numbers[] = {0, 1, 2, 3, 4 }; Int *ptr = numbers; Ptr++; After this code executes, which of the following statements is true?

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

If a variable uses more than one byte of memory, for pointer purposes its address is:

Dynamic memory allocation occurs

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 ampersand (&) is used to dereference a pointer variable in C++.

The _________ , also known as the address operator, returns the memory address of a variable.

The statement cin >> *num3;

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

A pointer variable is designed to store

Assuming ptr is a pointer variable, what will the following statement output? cout << *ptr;

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.

These can be used as pointers.

When you pass a pointer as an argument to a function, you must

When using the new operator with an older compiler, it is good practice to:

A function may return a pointer, but the programmer must ensure that the pointer

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 number = 22; Int var = &number; Cout << var << endl;

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