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4

In C++, the stream base class is

A. iostream

B. iofstream

C. ios

D. stdio

Correct Answer :

C. ios


Related Questions

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4

If a friend function is declared inside a class it can access all data members of the class.

A. True

B. False

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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

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

The && and || operators

A. Compare two numeric values

B. Combine two numeric values

C. Compare two Boolean values

D. Combine two Boolean values

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4

this' is an implicit pointer.

A. True

B. False

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4

"[]" Operator is a unary operator.

A. True

B. False

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4

Inline function specifier reduces the overheads associated with a normal function call.

A. True

B. False

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4

Static data member can be declared as const too.

A. True

B. False

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4

By using protected, one can create class members that are private to their class but

A. that can not be inherited and accessed by a derived class

B. that can still be inherited and accessed by a derived class

C. that can be public

D. none of the above

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4

Objects get destroyed in the reverse order as they are created.

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

Class is similar to a variable.

A. True

B. False

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4

A variable defined within a block is visible

A. From the point of definition onwards in the program

B. From the point of definition onwards in the function

C. From the point of definition onwards in the block

D. Throughout the function

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4

Public data members can be accessed

A. Only from the base class itself

B. Both form the base class and from its derived classes

C. From the class which is friend of the base class

D. None of the above are correct

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4

:: is known as

A. scope resolution operator

B. global operator

C. Both (a) & (b)

D. None of these

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4

A direct access file is:

A. A file in which recoreds are arranged in a way they are inserted in a file

B. A file in which records are arranged in a particular order

C. Files which are stored on a direct access storage medium

D. None of the above

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4

Protected members cannot be inherited.

A. True

B. False

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4

Pick out the most appropriate statement

A. All variables must be declared before they are used

B. Variables in C++ need not be declared and the type can be assigned dynamically

C. Variables in C++ can be declared at the end of the program (before the main function terminates)

D. Variables can not be used explicitly in C++

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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

In C++, identifiers have to be declared at the beginning of the blocks.

A. True

B. False

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4

main() returns a value of type

A. real

B. char

C. int

D. null

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4

Which of the following can legitimately be passed to a function?

A. A constant

B. A variable

C. A structure

D. A header file

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4

new operator is used

A. To dynamically allocate storage

B. To statically allocate storage

C. To allocate storage for a new variable

D. None of the above are correct

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4

By default, members cannot be inherited.

A. True

B. False

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4

A pure virtual function is a virtual function that has

A. no definition in its base class

B. a definition in its base class

C. a definition in at least one derived class

D. definition in base class and at least one derived class

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4

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

A. instantiation

B. function prototype

C. constructor

D. destructor

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4

Static member functions have file scope.

A. True

B. False

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4

Which of the following relationship is known as inheritancerelationship?

A. ‘has-a’ relationship

B. ‘is-a’ relationship

C. association relationship

D. none of the above

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4

A base class is inherited by

A. derived class

B. inline function

C. constructor

D. none of the above

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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