C++-TS | WarmConnect

Welcome to your C++-TS test. Please take this test in one sitting of 25 minutes. You can go back and forth answering questions in any order. Your time begins when you fill in your details below and click on next. Submit the test when the time is up

Name

Phone

What are mandatory parts in the function declaration?

return type, function name

return type, function name, parameters

parameters, function name

parameters, variables

Where does the execution of the program starts?

user-defined function

main function

void function

else function

When will we use the function overloading?

same function name but different number of arguments

different function name but same number of arguments

same function name but same number of arguments

different function name but different number of arguments

Which of the following C++ code will give error on compilation?

================code 1================= 
#include <iostream> 
using namespace std; 
int main(int argc, char const *argv[]) 
{ 
cout<<"Hello World"; 
return 0; 
} 
======================================== 
================code 2================= 
#include <iostream> 
int main(int argc, char const *argv[]) 
{ 
std::cout<<"Hello World"; 
return 0; 
}

Both code 1 and code 2

Neither code 1 nor code 2

Code 2 only

Code 1 only

What will be the output of the following C++ code?

#include <iostream>
    using namespace std;
    int main()
    {
        char arr[20];
        int i;
        for(i = 0; i < 10; i++)
            *(arr + i) = 65 + i;
        *(arr + i) = '\0';
        cout << arr;
        return(0);
    }

ABCDEFGHIJ

AAAAAAAAAA

JJJJJJJJ

AAAAAAJJJJ

Wrapping data and its related functionality into a single entity is known as _____________

Abstraction

Encapsulation

Polymorphism

Modularity

Choose the right option.

string* x, y;

x is a pointer to a string, y is a string

y is a pointer to a string, x is a string

both x and y are pointers to string types

y is a pointer to a string

What will be the output of the following C++ code?

  #include <iostream>
    using namespace std;
    int mult (int x, int y)
    {
        int result;
        result = 0;
        while (y != 0) 
        {
            result = result + x;
            y = y - 1;
        }
        return(result);
    }
    int main ()
    {
        int x = 5, y = 5;
        cout  << mult(x, y) ;
        return(0);
    }

What will be the output of the following C++ code?

#include <iostream>
    using namespace std;
    int add(int a, int b);
    int main()
    {
        int i = 5, j = 6;
        cout << add(i, j) << endl;
        return 0;
    }
    int add(int a, int b )
    {
        int sum = a + b;
        a = 7;
        return a + b;
    }

compile time error

What are the formal parameters in C++?

Parameters with which functions are called

Parameters which are used in the definition of the function

Variables other than passed parameters in a function

Variables that are never used in the function

What will be the output of the following C++ code?

#include <iostream>   
int main(int argc, char const *argv[]) 
{ 
cout<<"Hello World"; 
return 0; 
}

Hello World

Compile-time error

Run-time error

Segmentation fault

Which function is used to read a single character from the console in C++?

cin.get(ch)

getline(ch)

read(ch)

scanf(ch)

If the user did not supply the value, what value will it take?

default value

rise an error

both default value & rise an error

error

What will be the output of the following C++ code?

#include <iostream>
    using namespace std;
    int main()
    {
        char *ptr;
        char Str[] = "abcdefg";
        ptr = Str;
        ptr += 5;
        cout << ptr;
        return 0;
    }

cdef

defg

abcd

What will be the output of the following C++ code?

#include <stdio.h>
    #include<iostream>
    using namespace std;
    int array1[] = {1200, 200, 2300, 1230, 1543};
    int array2[] = {12, 14, 16, 18, 20};
    int temp, result = 0;
    int main()
    {
        for (temp = 0; temp < 5; temp++) 
        {
            result += array1[temp];
        }
        for (temp = 0; temp < 4; temp++)
        {
            result += array2[temp];
        }
        cout << result;
        return 0;
    }

6553

6533

6522

12200

Which of the following feature is used in function overloading and function with default argument?

Encapsulation

Polymorphism

Abstraction

Modularity

What is an inline function?

A function that is expanded at each call during execution

A function that is called during compile time

A function that is not checked for syntax errors

A function that is not checked for semantic analysis

Out of the following, which is not a member of the class?

Static function

Friend function

Constant function

Virtual function

What will be the output of the following C++ code?

#include <iostream>
    using namespace std;
    int max(int a, int b )
    {
        return ( a > b ? a : b );
    }
    int main()
    {
        int i = 5;
        int j = 7;
        cout << max(i, j );
        return 0;
    }

either 5 or 7

Which concept allows you to reuse the written code?

Encapsulation

Abstraction

Inheritance

Polymorphism

Which of the following operator is used with this pointer to access members of a class?

How many types of polymorphism are there in C++?

Which of the following escape sequence represents tab?

\t\r

What will be the output of the following C++ code?

    #include <iostream>
    using namespace std;
    int main()
    {
        int a = 5, b = 10, c = 15;
        int *arr[ ] = {&a, &b, &c};
        cout << arr[1];
        return 0;
    }

it will return some random number

Overloaded functions are ________________

Very long functions that can hardly run

One function containing another one or more functions inside it

Two or more functions with the same name but different number of parameters or type

Very long functions

26 out of 25