C++ Multiple Choice Questions for Beginners

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Question: 1

How many loops are there in C++ 98?

(A) 2
(B) 3
(C) 4
(D) 1

Compiler

Level: Beginner

Category of MCQ: loops in C++

Question: 2

//What is the output of below C++ program?

#include <iostream>

int main()
{
 if(0)
 {
    std::cout<<"Hi";
 }
 else
 {
    std::cout<<"Bye";
 }
return 0;
}

(A) Hi
(B) Bye
(C) HiBye
(D) Compilation Error

Compiler

Level: Beginner

Category of MCQ: conditional in C++

Question: 3

What following operator is called 
?: in C++?

(A) Scope Resolution Operator
(B) Conditional Operator
(C) Ternary Operator
(D) if else o/p

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 4

What is size of int data type in C++?

(A) 2 Bytes
(B) 4 Bytes
(C) 1 Byte
(D) Depends on Compiler

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 5

Which operator can not be overloaded in C++?

(A) +
(B) -
(C) *
(D) ::

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 6

Which operator has highest precedence in below list in C++?

(A) +
(B) -
(C) ++
(D) *

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 7

//What should be the output of below C++ program?

#include<iostream>

int main()
{
int a=10; 
std::cout<<a++;
return 0;
}

(A) 11
(B) 10
(C) Error
(D) 0

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 8

What is correct syntax of a for loop in C++?

(A) for(initialization;condition; increment/decrement)
(B) for(increment/decrement; initialization; condition)
(C) for(initialization, condition, increment/decrement
(D) None of These

Compiler

Level: Beginner

Category of MCQ: loops in C++

Question: 9

Can we overload functions in C++?

(A) Yes
(B) No
(C) Compilation Error
(D) Runtime Error

Compiler

Level: Beginner

Category of MCQ: function in C++

Question: 10

//What is output of below C++ program?
#include<iostream>

int main()
{
  const int a=10;
  a++;
  std::cout<<a;
  return 0;

}

(A) 10
(B) 11
(C) Compilation Error
(D) Linking Error

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 11

Which operator has highest precedence?

(A) ()
(B) =
(C) *
(D) ++

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 12

//What is the value of a in below C++ program?

int main()
{
 int a, b=20;
 a = 90/b;
 return 0;
}

(A) 4.5
(B) 4.0
(C) 4
(D) Compilation Error

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 13

//What is the output of the following C++ program ?                   
#include<iostream>

class base
{
public:
       base()
       {          
           cout<<"BCon";
       }
       ~base()
       {
	   cout<<"BDest ";
       }
};
class derived: public base
{
public:
       derived()
       {     cout<<"DCon ";
       }
       ~derived()
       {     cout<<"DDest ";
       }
};

int main()
{
derived object;
return 0; 
}

(A) Dcon DDest
(B) Dcon DDest BCon BDest
(C) BCon DCon DDest BDest
(D) BCon DCon BDes DDest

Compiler

Level: Beginner

Category of MCQ: classesAndobjects in C++

Question: 14

//What is the output of the below C++ program?

int main()
{
int a = 10;
cout<<a++;
return 0;
}

(A) 10
(B) 11
(C) 12
(D) Not defined

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 15

What is the full form of oop

(A) Object oriented programming
(B) Oriented object programming
(C) Office oriented programming
(D) office objective programming

Compiler

Level: Beginner

Category of MCQ: other in C++

Question: 16

What is output of the below C++ program?

int main()
{
  int a=10;
  int b,c;
  b = a++;
  c = a;
  std::cout<<a<<b<<c;
  return 0;
}

(A) 111011
(B) 111111
(C) 101011
(D) 101010

Compiler

Level: Beginner

Category of MCQ: operators in C++

Question: 17

Can a for loop contain another for loop?

(A) No
(B) Yes
(C) Compilation Error
(D) Runtime Error

Compiler

Level: Beginner

Category of MCQ: loops in C++

Question: 18

Can a Structure contain pointer to itself?

(A) Yes
(B) No
(C) Compilation Error
(D) Runtime Error

Compiler

Level: Beginner

Category of MCQ: structure in C++

Question: 19

What is size of void in bytes?

(A) 1
(B) 2
(C) 4
(D) 0

Compiler

Level: Beginner

Category of MCQ: datatype in C++

Question: 20

Can any function call itself?

(A) Yes
(B) No
(C) Compilation Error
(D) Runtime Error

Compiler

Level: Beginner

Category of MCQ: function in C++

Question: 21

//What should be the output of below program?

#include<iostream>

int main()
{
 
std::cout<<"CppBuzz";;;;;  
 return 0;                                                                          
}

(A) Compilation Error
(B) Runtime Error
(C) CppBuzz
(D) CppBuzz;;;;

Compiler

Level: Beginner

Category of MCQ: other in C++

Question: 22

//What should be the output?

#include<iostream>
using namespace std;

int main() {
    int new = -10;
    std::cout<<"new is: "<<new;
    return 0;
}

(A) new is: -10
(B) new is: 10
(C) Compilation Error
(D) new is: 0

Compiler

Level: Beginner

Category of MCQ: loops in C++

Question: 23

C++ is superset of which langauge?

(A) BASIC
(B) VB
(C) PASCAL
(D) C

Compiler

Level: Beginner

Category of MCQ: other in C++

Question: 24

#include<iostream>

class Mycpp
{
    int Mycpp()
    {
       std::cout<<"Constructor";
       return 0;
     }
};

int main()
{
    Mycpp obj;
    return 0;
}

(A) Constructor
(B) 0
(C) Compilation Error
(D) Runtime Error

Compiler

Level: Beginner

Category of MCQ: classesAndobjects in C++

Question: 25

#include<iostream>

class Mycpp
{
    
};

int main()
{
    Mycpp obj;
    return 0;
}

(A) Compilation Error - Constructor Missing
(B) Nothing would be printed
(C) Undefined
(D) In constructor

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