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Q:

What is meant by pure virtual function?

A) Function which does not have definition of its own. B) Function which does have definition of its own.
C) Function which does not have any return type. D) None of the mentioned
 
Answer & Explanation Answer: A) Function which does not have definition of its own.

Explanation:

As the name itself implies, it have to depend on other class only.

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Filed Under: C++

Q:

Which is also called as abstract class?

A) virtual function B) pure virtual function
C) derived class D) None of these
 
Answer & Explanation Answer: B) pure virtual function

Explanation:

Classes that contain at least one pure virtual function are called as abstract base classes.

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Q:

Which of the following can derived class inherit?

A) members B) functions
C) both a & b D) None of the above
 
Answer & Explanation Answer: C) both a & b

Explanation:
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Q:

What is the user-defined header file extension in c++?

A) cpp B) h
C) hf D) none of these
 
Answer & Explanation Answer: B) h

Explanation:
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Q:

What is the general syntax for accessing the namespace variable?

A) namespaceid::operator B) namespace,operator
C) namespace#operator D) none of the mentioned
 
Answer & Explanation Answer: A) namespaceid::operator

Explanation:
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Q:

What is the use of Namespace?

A) To encapsulate the data B) To structure a program into logical units.
C) Both a and b D) none of these
 
Answer & Explanation Answer: B) To structure a program into logical units.

Explanation:

The main aim of the namespace is to understand the logical units of the program and to make the program so robust.

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Q:

How many types of modularization are there in c++?

A) 4 B) 3
C) 1 D) none of these
 
Answer & Explanation Answer: D) none of these

Explanation:

There are two types of modular programming.They are interface and implementation.

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Q:

How many types of macros are there in c++?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:

There are two types of macros. They are object-like and function-like.

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Filed Under: C++