Question 1

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

Question 2

Any arithmetic operation may be performed on pointers.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

When the ________ 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 the above 
A)  asterisk ( * ) 
B)  conditional operator 
C)  ampersand ( & ) 
D)  semicolon ( ; ) 
E)  None of the above

Question 6

________ can be used as pointers.

Accepted Answer

A)  Array names 
B)  C++ string objects 
C)  Punctuation marks 
D)  All of the above 
E)  None of the above 
A)  Array names 
B)  C++ string objects 
C)  Punctuation marks 
D)  All of the above 
E)  None of the above

Question 7

If arr is an array identifier and k is an integer, the expression arr[k] is equivalent to

Accepted Answer

A)  *(arr + k). 
B)  *arr + k. 
C)  &arr[k]. 
D)  arr + k. 
E)  None of the above 
A)  *(arr + k). 
B)  *arr + k. 
C)  &arr[k]. 
D)  arr + k. 
E)  None of the above

Question 8

If dynamically allocated memory is not freed,

Accepted Answer

A)  the system may run out of memory. 
B)  it results in a compiler error. 
C)  a run-time error informs your user that the program did not free memory space. 
D)  the source code will not link correctly. 
E)  None of the above 
A)  the system may run out of memory. 
B)  it results in a compiler error. 
C)  a run-time error informs your user that the program did not free memory space. 
D)  the source code will not link correctly. 
E)  None of the above

Question 9

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

Accepted Answer

A)  value. 
B)  address. 
C)  dynamically allocated value. 
D)  name. 
E)  None of the above 
A)  value. 
B)  address. 
C)  dynamically allocated value. 
D)  name. 
E)  None of the above

Question 10

You may use the type pointer to a structure as the type of a

Accepted Answer

A)  function parameter. 
B)  structure member. 
C)  function return type. 
D)  All of the above 
E)  None of the above 
A)  function parameter. 
B)  structure member. 
C)  function return type. 
D)  All of the above 
E)  None of the above

Question 11

If Circle is a structure type, the statement Circle *pcirc;

Accepted Answer

A)  defines a structure variable called *pcirc. 
B)  defines a structure pointer called pcirc. 
C)  is illegal in C++. 
D)  initializes a Circle pointer. 
E)  None of the above 
A)  defines a structure variable called *pcirc. 
B)  defines a structure pointer called pcirc. 
C)  is illegal in C++. 
D)  initializes a Circle pointer. 
E)  None of the above

Question 12

Memory cannot be allocated after a program is already running.

Accepted Answer

A) True 
 B)False

Question 13

An array name is a pointer constant because the address it represents cannot be changed during run-time.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

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

Question 15

A ________________ keeps track of dynamically-allocated memory and automatically deletes when it is no longer in use.

Accepted Answer

A)  deleting pointer 
B)  null pointer 
C)  smart pointer 
D)  memory conservation pointer 
E)  None of the above 
A)  deleting pointer 
B)  null pointer 
C)  smart pointer 
D)  memory conservation pointer 
E)  None of the above

Question 16

Any time you use the new operator, it is good practice to

Accepted Answer

A)  use delete afterwards to free the memory allocated by new. 
B)  use a preprocessor directive. 
C)  clear the data from the old operator 
D)  All of the above 
E)  None of the above 
A)  use delete afterwards to free the memory allocated by new. 
B)  use a preprocessor directive. 
C)  clear the data from the old operator 
D)  All of the above 
E)  None of the above

Question 17

The statement double *num;

Accepted Answer

A)  defines a variable of type double called num. 
B)  defines and initializes a pointer variable called num. 
C)  initializes a variable called *num. 
D)  defines a pointer variable called num. 
E)  None of the above 
A)  defines a variable of type double called num. 
B)  defines and initializes a pointer variable called num. 
C)  initializes a variable called *num. 
D)  defines a pointer variable called num. 
E)  None of the above

Question 18

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

Accepted Answer

A)  is pointing to an object that is still valid after the return of the function. 
B)  has 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 the above 
A)  is pointing to an object that is still valid after the return of the function. 
B)  has 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 the above

Question 19

The statement cout << *ptr; will 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 the above 
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 the above

Question 20

The statement int *ptr = new int; acquires memory to hold an integer and then

Accepted Answer

A)  initializes the allocated memory to 0. 
B)  assigns an integer value to the variable called ptr. 
C)  sets ptr to point to the allocated memory. 
D)  creates a new pointer called int. 
E)  None of the above 
A)  initializes the allocated memory to 0. 
B)  assigns an integer value to the variable called ptr. 
C)  sets ptr to point to the allocated memory. 
D)  creates a new pointer called int. 
E)  None of the above

A pointer variable is designed to store

Any arithmetic operation may be performed on pointers.

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

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

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

________ can be used as pointers.

If arr is an array identifier and k is an integer, the expression arr[k] is equivalent to

If dynamically allocated memory is not freed,

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

You may use the type pointer to a structure as the type of a

If Circle is a structure type, the statement Circle *pcirc;

Memory cannot be allocated after a program is already running.

An array name is a pointer constant because the address it represents cannot be changed during run-time.

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

A ________________ keeps track of dynamically-allocated memory and automatically deletes when it is no longer in use.

Any time you use the new operator, it is good practice to

The statement double *num;

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

The statement cout << *ptr; will output

The statement int *ptr = new int; acquires memory to hold an integer and then

Introduction to Computers and Programming

Introduction to C Plus Plus

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, Algorithm Analysis

More About Classes and Object-Oriented Programming

More on C-Strings and the String Class

Advanced File and Io Operations

Recursion

Polymorphism and Virtual Functions

Exceptions, Templates, and the Standard Template Library Stl

Linked Lists

Stacks and Queues

Binary Trees

Filters

Exam 10: Pointers

A pointer variable is designed to store

Any arithmetic operation may be performed on pointers.

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

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

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

________ can be used as pointers.

If arr is an array identifier and k is an integer, the expression arr[k] is equivalent to

If dynamically allocated memory is not freed,

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

You may use the type pointer to a structure as the type of a

If Circle is a structure type, the statement Circle *pcirc;

Memory cannot be allocated after a program is already running.

An array name is a pointer constant because the address it represents cannot be changed during run-time.

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

A ________________ keeps track of dynamically-allocated memory and automatically deletes when it is no longer in use.

Any time you use the new operator, it is good practice to

The statement double *num;

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

The statement cout << *ptr; will output

The statement int *ptr = new int; acquires memory to hold an integer and then

Introduction to Computers and Programming

Introduction to C Plus Plus

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, Algorithm Analysis

More About Classes and Object-Oriented Programming

More on C-Strings and the String Class

Advanced File and Io Operations

Recursion

Polymorphism and Virtual Functions

Exceptions, Templates, and the Standard Template Library Stl

Linked Lists

Stacks and Queues

Binary Trees

Filters