C++ PROGRAMMING

Question 1

A one-dimensional array is a list of related values with the same ____ that is stored using a single group name.

		size
		data type
		value
		offset

Question 2

Consider the declarations const int ARRAYSIZE = 7; and double length[ARRAYSIZE] = {7.8, 6.4, 4.9, 11.2};. How many elements will be initialized to zero?

		none
		one
		two
		three

Question 3

The statement cin >> grade[4] >> prices[6]; causes ____ values to be read and stored.

		2
		4
		6
		10

Question 4

Passing addresses is referred to as a function pass by reference because the called function can reference, or access, the variable whose address has been passed.

True

False

Question 5

A called function can return more than one legitimate value to its calling function.

True

False

Question 6

The new and delete operators provide a mechanism for enlarging and shrinking arrays.

Answers:	True
	False

Question 7

Under a dynamic allocation scheme, the amount of storage to be allocated is determined and adjusted ____.

Answers:	at compile time
	at runtime
	when a program error occurs
	interactively by the user

Question 8

For dynamic allocation of memory to create new variables as a program is running, pointers are ____.

Answers:	required
	helpful
	not allowed
	allowed

Question 9

Adding 1 to a pointer causes the pointer to point to the ____.

Answers:	next element of the type pointed to
	first element of the type pointed to
	next byte
	next block

Question 10

The expression *gPtr + 3 is equivalent to *(gPtr + 3).

Answers:	True
	False

Question 11

Any subscript used by a programmer is automatically converted to a(n) ____ by the compiler.

Answers:	integer
	expression
	offset
	equivalent pointer expression

QUESTION 12

What is the output of the following C++ code?

int *p = new int;

int *q = new int;

p = q;

*q = 75;

delete p;

p = new int;

*p = 26;

q = new int;

q = p;

*q = 62;

cout << *p << " " << *q << endl;

Selected Answer:

62 62

Question 13

A class ____ automatically executes whenever a class object goes out of scope.

Selected Answer:	destructor
Answers:	constructor
	destructor
	pointer
	exception

Question 14

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.

Selected Answer:	True
Answers:	True
	False

Question 15

1 out of 1 points

If a is a class object and p, a pointer, is a public member of the class, what will the following statement do?

cout << *a.p;

Answers:	Output the dereferenced value pointed to by p
	Result in a compiler error
	Output the address stored in p
	Output the value stored in a

Question 16

Which of the following is true about classes and structs?

Selected Answer:	You cannot use the member access specifier private in a struct.
Answers:	By default, all members of a struct are public and all members of a class are private.
	A struct variable is passed by value only, and a class variable is passed by reference only.
	An assignment operator is allowed on class variables, but not on struct variables.
	You cannot use the member access specifier private in a struct.

Question 17

What will the following code display?

int numbers[] = { 99, 87, 66, 55, 101 };

for (int i = 1; i < 4; i++)

cout << numbers[i] << " ";

Answers:	99 87 66 55 101
	87 66 55 101
	87 66 55
	Nothing. This code has an error.

Question 18

Given the declaration Student *student;, the statement student = new Student[50]; dynamically allocates a dynamic array of the type ____.

Answers:	Student
	student
	pointer
	Student*

Question 19

Which is Abstract Data Type in C++

Answers:	Class
	int
	float
	array

Question 20

By default functions available in C++ language are

Answers:	Constructor
	Copy Constructor
	Destructor
	Assignment Operator
	All of above

Question 21

What is the output of this program?

1. #include  

2. using namespace std; 

3. int main () 

4. { 

5. int numbers[5]; 

6. int * p; 

7. p = numbers; *p = 10; 

8. p++; *p = 20; 

9. p = &numbers[2]; *p = 30; 

10. p = numbers + 3; *p = 40; 

11. p = numbers; *(p + 4) = (*p) *2; 

12. for (int n = 0; n < 5; n++) 

13. cout << numbers[n] << ","; 

14. return 0; 

15. } 

Answers:	10,20,30,40,20,
	10,20,30,40,40,
	Compiler Error
	Runtime Error

Question 22

A linked list is a random access data structure such as an array.

Answers:	True
	False

Question 23

Because initially the list is empty, the pointer listData must be initialized to ____.

Answers:	NULL
	EMPTY
	NIL
	NOP

Question 24

In a linked list, we always want listData to point to the ____ node.

Answers:	key
	main
	first
	last

Question 25

To access the fifth element in a list, we must first traverse the first four elements.

Answers:	True
	False

Question 26

To delete a given item from an ordered linked list, there is no need to search the list to see whether the item to be deleted is in the list.

Answers:	True
	False