Test: Function - 1 - Back-End Programming MCQ

How many max number of arguments can present in function in c99 compiler?

What is the output of the program?

#include<iostream>
using namespace std;

class Base
{
public:
    virtual void show() = 0;
};

int main(void)
{
    Base b;
    Base *bp;
    return 0;
}

What is the output of this program?

#include < iostream >
using namespace std;
void mani()
void mani()
{
cout << "hai";
}
int main()
{
main();
return 0;
}

What is the output of the program?

#include<iostream>
using namespace std;
 
class Base
{
public:
    virtual void show() = 0;
};
 
class Derived: public Base
{
public:
    void show() { cout<<"In Derived n"; }
};
 
int main(void)
{
    Derived d;
    Base &br = d;
    br.show();
    return 0;
}

What is the scope of the variable declared in the user definied function?

Can a destructor be virtual? Will the following program compile?

#include <iostream>
using namespace std;
class Base {
public:
  virtual ~Base() {}  
};
int main() {
   return 0;
}

How many ways of passing a parameter are there in c++?

Can static functions be virtual? Will the following program compile?

#include<iostream> 
using namespace std;    

class Test
{
   public:
      virtual static void fun()  { }
};

By default how the value are passed in c++?

What is the output of the program?

#include <iostream>
using namespace std;
  
class A
{
public:
    virtual void fun() { cout << "A::fun() "; }
};
  
class B: public A
{
public:
   void fun() { cout << "B::fun() "; }
};
  
class C: public B
{
public:
   void fun() { cout << "C::fun() "; }
};
  
int main()
{
    B *bp = new C;
    bp->fun();
    return 0;
}

How many types of returning values are present in c++?

Predict the output of following C++ program

#include<iostream>

using namespace std;

class Base
{
public:

    virtual void show() { cout<<" In Base n"; }

};

class Derived: public Base

{

public:

    void show() { cout<<"In Derived n"; }

};

int main(void)

{

    Base *bp = new Derived;

    bp->Base::show();  // Note the use of scope resolution here

    return 0;

}