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4

In a class, only the member function can access data, which is not accessible to outside. This feature is called:

A. Data security

B. Data hiding

C. Data manipulation

D. Data definition

Correct Answer :

B. Data hiding


Related Questions

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4

We can make function inline by using the keyword 'inline'.

A. True

B. False

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4

ios containes a pointer to streambuf.

A. True

B. False

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4

cc ___________ option is used only to create object file

A. -a

B. -o

C. -c

D. none of these

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4

A copy constructor is used to copy an object member wise to another object of the same class.

A. True

B. False

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4

Friend function have access to the

A. private and protected members

B. public members only

C. private members only

D. None of the above are correct

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4

Pick out the most appropriate statement from the following

A. references are pointers

B. array of references can be created

C. you can not reference a reference variable

D. all of the above

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4

In C++, the keyword auto can be used for

A. Automatic assignment of data to object during instantiation

B. Automatic call of a function

C. To declare a local variable

D. It is not a keyword in C++

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4

The exception is processed using

A. unexpected()

B. perform()

C. catch()

D. try()

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4

What is the output of the following program segment - for(i = 1, j = 0; i < 10; i++) j += i; cout <<i<<"
";

A. 10

B. 20

C. 55

D. there is an error in the program

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4

The break statement causes an exit

A. Only from the innermost loop

B. Only from the innermost switch

C. From all loops and switch

D. Only from the innermost loops or switch

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4

Classes are useful because they

A. Are removed from memory when not in use

B. Permit data to be hidden from other classes

C. Bring together all aspects of an entity in one place

D. Can closely model objects in the real world

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4

iostream is inheried from istream, ostream and ios class.

A. True

B. False

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4

Class is similar to a variable.

A. True

B. False

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4

In C++, an identifier must be initialized using constant expression.

A. True

B. False

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4

The binding that binds a function call at run time is called

A. early binding

B. run time binding

C. late binding

D. linking

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4

One of the major disadvantage with late binding is

A. the source code should be made available at compile time

B. the program runs slower

C. dynamic variables can not be used in the program

D. static variables can not be used

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4

Which of the following is not a component of file system

A. Access method

B. Auxiliary storage management

C. Free integrity mechanism

D. None of the above

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4

What is the value of Friday in the following - enum days { Monday, Tuesday, Wednesday = -1, Thursday, Friday, Saturday = 6, Sunday}

A. 1

B. 5

C. 0

D. -3

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4

A class that contains at least one pure virtual function is called as

A. pure class

B. abstract class

C. base class

D. derived class

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4

You can read input that consists of multiple lines of text using

A. The normal cout<< combination

B. The cin.get() function with one argument

C. The cin.get() function with two argument

D. The cin.get() function with three argument

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4

_____________ operator must have one class object

A. +

B. new

C. all

D. None of these

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4

Overloaded functions

A. Are a group of functions with the same name

B. All have the same number and types of arguments

C. Make life simpler for programmer

D. May fail unexpectedly due to stress

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4

By default, C++ uses the following method of passing arguments

A. Call-by-Reference

B. Call-by-Value

C. Call-by-Pointer

D. None of the above

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4

Scope resolution operator has the highest precedence.

A. True

B. False

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4

In a class, only the member function can access data, which is not accessible to outside. This feature is called:

A. Data security

B. Data hiding

C. Data manipulation

D. Data definition

What is the correct answer?

4

One of the important features of an abstract class is

A. it need not have any object

B. it should be used only as a derived class

C. it need not have any members

D. none of the above

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4

Constructor returns void type value.

A. True

B. False

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4

The members of a class can be made private by

A. declaring them private

B. by default they are private

C. by declaring them in the beginning of the program immediately after main()

D. they are always public

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4

A function that is called automatically when an object is created is known as

A. instantiation

B. function prototype

C. constructor

D. structure

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4

The scope resolution operator is -

A. ::

B. ;

C. <<

D. ->