C++ Questions

Q:

What is the difference between stack and array?

Answer

Stack:


 - Stack is a ordered collection of items


 - Stack is a dynamic object whose size is constantly changing as items are pushed and popped .


 - Stack may contain different data types


Array:


- Array is an ordered collection of items


- Array is a static object i.e. no of item is fixed and is assigned by the declaration of the array


- It contains same data types.

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Subject: C++ - Technology Exam Prep: GATE

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Q:

What is the Standard Template Library?

Answer

A library of container templates approved by the ANSI committee for inclusion in the standard C++ specification. A programmer who then launches into a discussion of the generic programming model, iterators, allocators, algorithms, and such, has a higher than average understanding of the new technology that STL brings to C++ programming

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Subject: C++ - Technology
Job Role: Software Architect

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Q:

Which is more effective while calling the functions?

A) call by value B) call by reference
C) call by pointer D) none
 
Answer & Explanation Answer: B) call by reference

Explanation:

In the call by reference, it will just copy the address of the variable to access it, so it will reduce the memory in accessing it.

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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:

In which of the following we cannot overload the function?

A) return function B) caller
C) called function D) none of the mentioned
 
Answer & Explanation Answer: A) return function

Explanation:

While overloading the return function, it will rise a error, So we can’t overload the return function.

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