Question # 1

What purpose do classes serve?

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Data encapsulation

Providing a convenient way of modeling real-world objects

Simplifying code reuse

All of the given options

&& is -------------------- operator.

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An arithmetic

Logical

Relational

Unary

The prototype of friend functions must be written ____ the class and its definition must be written ____.

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inside, inside the class

inside, outside the class

outside, inside the class

outside, outside the class

Class is a user defined___________.

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Data type

Memory referee

Value

None of the given options

The return type of the operator function for << operator is __________.

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class for which we overload operator

reference of ostream class (ostream&)

reference of istream class (istream&)

void

What will be the correct syntax to access the value of fourth element of an array using pointer ptr?

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ptr[3]

(ptr+3)

*(ptr+3)

Both 1and 3

A Matrix can be composed of ints, floats or doubles as their elements. Best way is to handle this _______________

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Write a separate class to handle each

Use templates

Use strings to store all types

None of the given options

Structured Query Language is used for ______________

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Databases Management

Networks

Writing Operating System

none of the given options

The statement cin.get (); is used to,

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Read a string from keyboard

Read a character from keyboard

Read a string from file

Read a character from file

The function free() returns back the allocated memory got thorough calloc andmalloc to _____.

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stack

heap

stack and heap

None of the given options

C is widely known as development language of _______ operating system.

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Linux

Windows

Unix

Mac OS

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