542 + Mcqs in Object Oriented Programming Using Cpp McqOptions

1.	The keyword used to define a structure is
A.	stru
B.	stt
C.	struct
D.	unlimited
Answer» D. unlimited

Discussion

2.	The rules to any programming language are its _______
A.	syntax
B.	interpretation
C.	logic
D.	customs
Answer» B. interpretation

Discussion

3.	The function whose prototype is void getData(Item *thing); receives
A.	a pointer to a structure
B.	a reference to a structure
C.	a copy of a structure
D.	nothing
Answer» B. a reference to a structure

Discussion

4.	A C++ _____ is a program that runs in a DOS window
A.	algorithm
B.	cast application
C.	console application
D.	source application
Answer» D. source application

Discussion

5.	_____ variables remain in memory until the program ends
A.	Area
B.	Global
C.	Local
D.	Reference
Answer» C. Local

Discussion

6.	The statement int num[2][3]={ {3,8,6}, {9,4,7}};
A.	assigns a value 4 to num[1][2]
B.	assigns a value 7 to num[1][2]
C.	assigns a value 8 to num[1][2]
D.	assigns a value 9 to num[1][2]
Answer» C. assigns a value 8 to num[1][2]

Discussion

7.	The continue statement should be written only
A.	in the body of a loop.
B.	in the nested loops
C.	outside the body of a loop
D.	any where
Answer» B. in the nested loops

Discussion

8.	Overloading involves writing two or more functions with ________
A.	different names and different argument lists
B.	different names and the same argument list
C.	the same name and different argument lists
D.	the same name and the same argument list
Answer» D. the same name and the same argument list

Discussion

9.	When the compiler places a copy of a small function's statements directly into a program, the function is said to be _____
A.	overloaded
B.	mangled
C.	inline
D.	redundant
Answer» D. redundant

Discussion

10.	You typically initialize Character variables to _____
A.	a space enclosed in double quotes
B.	a space enclosed in single quotes
C.	the letter O
D.	the number 0
Answer» C. the letter O

Discussion

11.	Having more than one function with the same name is called
A.	overloading
B.	defaulting
C.	casting
D.	referencing
Answer» B. defaulting

Discussion

12.	If an integer object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is _____
A.	const int &
B.	int &
C.	either (a) or (b)
D.	neither (a) nor (b)
Answer» D. neither (a) nor (b)

Discussion

13.	The keyword virtual indicates that
A.	a derived class has public access to a base class
B.	more than one base class exists
C.	a base class should be used only once in inheritance
D.	a derived class should have more than one base class constructed
Answer» D. a derived class should have more than one base class constructed

Discussion

14.	The bitwise AND operator is represented by the symbol
A.	^
B.	&
C.	&&
D.	>>
Answer» C. &&

Discussion

15.	A default constructor _____
A.	takes no arguments
B.	has default values for all its arguments
C.	either (a) or (b)
D.	neither (a) nor (b).
Answer» D. neither (a) nor (b).

Discussion

16.	Inheritance occurs when a class adopts all the traits of _________
A.	an object
B.	a parent class
C.	a variable
D.	a function
Answer» C. a variable

Discussion

17.	The dot operator (or class member access operator) connects the following two entities (reading from left to right):
A.	a class member and a class object
B.	a class object and a class
C.	a class and a member of that class
D.	a class object and a member of that class
Answer» E.

Discussion

18.	When a function performs tasks based on a decision, it has _____
A.	functional cohesion
B.	coincidental cohesion
C.	logical cohesion
D.	no cohesion
Answer» D. no cohesion

Discussion

19.	The null character needs a space of
A.	zero bytes
B.	one byte
C.	three bytes
D.	four bytes
Answer» C. three bytes

Discussion

20.	Which (if any) of the following is NOT a programmer-defined type
A.	an array
B.	a structure
C.	a class
D.	All of the above are programmer-defined types
Answer» E.

Discussion

21.	_____ refers to the process of locating and removing the errors in a program
A.	Analyzing
B.	Correcting
C.	Debugging
D.	Executing
Answer» D. Executing

Discussion

22.	It is illegal to make objects of one class members of another class
A.	1
B.
C.	depends upon the kind of object
Answer» C. depends upon the kind of object

Discussion

23.	directives must be present
A.	before the main() function
B.	after the main() function
C.	at the end of the program
D.	anywhere in the program body
Answer» B. after the main() function

Discussion

24.	If an integer object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is
A.	int
B.	double
C.	either (a) or (b)
D.	neither (a) nor (b)
Answer» B. double

Discussion

25.	An asterisk placed after a data type means .
A.	array to
B.	pointer to
C.	address to
D.	located to
Answer» C. address to

Discussion

26.	Making class members inaccessible to nonmember functions is an example of
A.	polymorphism
B.	data hiding
C.	redundancy
D.	recursion
Answer» C. redundancy

Discussion

27.	Assume that a program contains a programmer-defined void function. When C++ encounters the function's closing brace (}), C++ returns to the statement _____
A.	immediately above the statement that called the function
B.	that called the function
C.	immediately below the statement that called the function
Answer» D.

Discussion

28.	A group of related fields that contain all of the data about a specific person, place, or thing is called a
A.	data file
B.	field file
C.	program file
D.	record
Answer» E.

Discussion

29.	The statement int num[2][3]={ {1,2}, {3,4}, {5, 6} };
A.	assigns a value 2 to num[1][2]
B.	assigns a value 4 to num[1][2]
C.	gives an error message
D.	assigns a value 3 to num[1][2]
Answer» D. assigns a value 3 to num[1][2]

Discussion

30.	Reference variables and const class members _____
A.	must be assigned values in any derived class
B.	must never be initialized in a base class
C.	must be initialized, rather than assigned values
D.	must not exist if a class is to be a base class
Answer» D. must not exist if a class is to be a base class

Discussion

31.	To pass an array by reference, you
A.	must include the address-of (&) operator before the array's name
B.	must include the number symbol (#) before the array's name
C.	do not have to do anything because arrays are automatically passed by reference
Answer» D.

Discussion

32.	A program can directly access the _____ members of a class
A.	hidden
B.	private
C.	public
D.	both (b) and (c)
Answer» D. both (b) and (c)

Discussion

33.	When you write to a file rather than the screen, you use the C++ class _____
A.	iostream
B.	filed
C.	fstream
D.	diskclass
Answer» D. diskclass

Discussion

34.	If a base class member is private, then
A.	if a derived class uses the public access specifier, the data member becomes public
B.	if a derived class uses the protected access specifier, the data member becomes protected
C.	both (a) and (b)
D.	neither (a) nor (b)
Answer» E.

Discussion

35.	The right shift operator is represented by the symbol
A.	>
B.	>>
C.	->
D.	<
Answer» C. ->

Discussion

36.	If two types of errors may be thrown, you should write _______
A.	no catch blocks
B.	one catch block with two arguments
C.	two catch block-one with an argument, and one without
D.	two catch blocks with one argument each
Answer» E.

Discussion

37.	A function argument is
A.	a variable in the function that receives a value from the calling program
B.	a way that functions resist accepting the calling program's values
C.	a value sent to the function by the calling program
D.	a value returned by the function to the calling program
Answer» D. a value returned by the function to the calling program

Discussion

38.	Which of the following will store the number 320000 as a Float number?
A.	counPop = (float) 3.2e5;
B.	counPop = (float) 3.2e6;
C.	counPop = (float) .32e5;
D.	counPop = (float) .32e7;
Answer» B. counPop = (float) 3.2e6;

Discussion

39.	A variable w with a value 67 may be defined with _______
A.	int w = 67;
B.	int w(67);
C.	int 67(w);
D.	both (a) and (b), but not (c).
Answer» E.

Discussion

40.	Assume that your version of C++ can recognize only the first 8 characters of an identifier name, through identifier names may be arbitrarily long. Which of the following identifier names is not distinct:
A.	list, list2
B.	address, Address
C.	identifier_l, identifier_2
D.	answer, ANSWER
Answer» D. answer, ANSWER

Discussion

41.	Two access specifers in C++ are
A.	public and private
B.	int and double
C.	formal and informal
D.	void and free
Answer» B. int and double

Discussion

42.	In C++, you use _____ to perform standard input and output operations
A.	characters
B.	sequences
C.	streams
D.	tests
Answer» D. tests

Discussion

43.	The function that takes arguments to set the bits of cout is _____
A.	setf()
B.	bitset()
C.	ios()
D.	flat()
Answer» B. bitset()

Discussion

44.	A compound statement does not consist of
A.	a single statement
B.	other compound statements
C.	expression statements
D.	control statements
Answer» B. other compound statements

Discussion

45.	Which is true?
A.	Coincidental cohesion is stronger than procedural cohesion
B.	Logical cohesion is stronger than coincidental cohesion
C.	Sequential cohesion is weaker than temporal cohesion
D.	The weakest cohesion is functional
Answer» C. Sequential cohesion is weaker than temporal cohesion

Discussion

46.	The loop condition in a flowchart is represented by a(n) _____
A.	diamond
B.	oval
C.	parallelogram
D.	rectangle
Answer» B. oval

Discussion

47.	A difference, between reference variables and pointers is that
A.	reference variables are easier to use
B.	pointers are easier to use
C.	reference variables are more flexible
D.	no difference exists between reference variables and pointers
Answer» B. pointers are easier to use

Discussion

48.	You must provide a constructor for a derived class
A.	always
B.	if the base class constructor required arguments
C.	if the base class constructor does not required arguments
D.	never
Answer» C. if the base class constructor does not required arguments

Discussion

49.	Which of the following statements creates and initializes a pointer named salesPtr?
A.	salesPtr = NULL;
B.	*salesPtr = "";
C.	float &salesPtr = NULL;
D.	float *salesPtr = "";
Answer» E.

Discussion

50.	The function printDataMembers() is mot likely a(n) ________
A.	inspector functions
B.	mutator functions
C.	auxiliary functions
D.	manager functions
Answer» B. mutator functions

Discussion

Explore topic-wise MCQs in Testing Subject.

The keyword used to define a structure is

The rules to any programming language are its _______

The function whose prototype is void getData(Item *thing); receives

A C++ _____ is a program that runs in a DOS window

_____ variables remain in memory until the program ends

The statement int num[2][3]={ {3,8,6}, {9,4,7}};

The continue statement should be written only

Overloading involves writing two or more functions with ________

When the compiler places a copy of a small function's statements directly into a program, the function is said to be _____

You typically initialize Character variables to _____

Having more than one function with the same name is called

If an integer object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is _____

The keyword virtual indicates that

The bitwise AND operator is represented by the symbol

A default constructor _____

Inheritance occurs when a class adopts all the traits of _________

The dot operator (or class member access operator) connects the following two entities (reading from left to right):

When a function performs tasks based on a decision, it has _____

The null character needs a space of

Which (if any) of the following is NOT a programmer-defined type

_____ refers to the process of locating and removing the errors in a program

It is illegal to make objects of one class members of another class

directives must be present

If an integer object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is

An asterisk placed after a data type means .

Making class members inaccessible to nonmember functions is an example of

Assume that a program contains a programmer-defined void function. When C++ encounters the function's closing brace (}), C++ returns to the statement _____

A group of related fields that contain all of the data about a specific person, place, or thing is called a

The statement int num[2][3]={ {1,2}, {3,4}, {5, 6} };

Reference variables and const class members _____

To pass an array by reference, you

A program can directly access the _____ members of a class

When you write to a file rather than the screen, you use the C++ class _____

If a base class member is private, then

The right shift operator is represented by the symbol

If two types of errors may be thrown, you should write _______

A function argument is

Which of the following will store the number 320000 as a Float number?

A variable w with a value 67 may be defined with _______

Assume that your version of C++ can recognize only the first 8 characters of an identifier name, through identifier names may be arbitrarily long. Which of the following identifier names is not distinct:

Two access specifers in C++ are

In C++, you use _____ to perform standard input and output operations

The function that takes arguments to set the bits of cout is _____

A compound statement does not consist of

Which is true?

The loop condition in a flowchart is represented by a(n) _____

A difference, between reference variables and pointers is that

You must provide a constructor for a derived class

Which of the following statements creates and initializes a pointer named salesPtr?

The function printDataMembers() is mot likely a(n) ________