score:0

Q - Where is the variable specified correctly?

A - var str = "Hi"; B - int num = "1"; C - done = true; D - char sym = 'a';

#include <iostream>

using namespace std;
void f() { 
   static int i; 
   
   ++i; 
   cout << i << " "; 
}

int main() { 
   f(); 
   f(); 
   f(); 
}

A - 1 1 1 B - 0 0 0 C - 3 2 1 C - 1 2 3

#include <iostream>

using namespace std;
int main() { 
   int i = 13, j = 60;
   
   i^=j;
   j^=i;
   i^=j;
   cout << i << " " << j;
}

A - 73 73 B - 60 13 C - 13 60 C - 60 60

Q - How can we make an class act as an interface in C++?

A - By only providing all the functions as virtual functions in the class. B - Defining the class following with the keyword virtual C - Defining the class following with the keyword interface C - Defining the class following with the keyword abstract

#include <iostream>

using namespace std;
int main() { 
   int x = 5;

   if(x==5) {	
      if(x==5) break;
      cout << "Hello";
   } 

   cout << "Hi"; 
}

A - Compile error B - Hi C - HelloHi C - Hello

Q - What is the output of the following program?

#include <iostream>

using namespace std;
int main() {
   char *s = "C++";
   
	cout << s << " ";
	s++;
	cout << s << " ";
}

A - C++ C++ B - C++ ++ C - ++ ++ C - Compile error

Q - From the below class choose the proper definition of the member function f().

template 

class abc {
   void f();
};

A - template
void abc::f() { } B - template
void abc::f() { } C - template
void abc::f() { } C - template
void abc::f() { }

 
#include <iostream>
using namespace std;
 
int main () {
   // local variable declaration:
   int x = 1;

   switch(x) {
   case 1 :
      cout  <<  "Hi!"  <<  endl; 
      break;
   default :
      cout  <<  "Hello!"  <<  endl;
   }
}

A - Hello B - Hi C - HelloHi C - Compile error

Q - An inline function can execute faster than a normal function.

A - True B - False

Q - What is the output of the following program?

int main() {
}

A - No output B - Garbage C - Compile error C - Runtime error

Q - Choose the option not applicable for the constructor.

A - Cannot be called explicitly. B - Cannot be overloaded. C - Cannot be overridden. C - None of the above.

Q - What is the output of the following program?

#include <iostream>

using namespace std;
int main() { 

   int i = 1, j = 2, k = 3, r; 

   r = (i, j, k);

   cout << r << endl;

}

A - 1 B - 2 C - 3 C - Compile Error

Q - Which type of data file is analogous to an audio cassette tape?

A - Random access file B - Sequential access file C - Binary file C - Source code file

Q - Choose the invalid identifier from the below

A - Int B - bool C - DOUBLE C - __0__

Q - What is the size of the following union definition?

#include <iostream>

using namespace std;
int main() {
   union abc { 
      char a, b, c, d, e, f, g, h; 
      
      int i;
   };
   cout << sizeof(abc) << endl;
}

A - 1 B - 2 C - 4 C - 8

Q - Runtime polymorphism is done using.

A - Function overloading B - Virtual classes C - Virtual functions C - Friend function

Q - A trigraph character begins with

A - # B - ## C - ? C - ??

Q - Choose the pure virtual function definition from the following.

A - virtual void f()=0 { } B - void virtual f()=0 { } C - virtual void f() {} = 0; C - None of the above.

Q - What is the full form of RTTI.

A - Runtime type identification B - Runtime template identification C - Robust Template Type Inheritance C - None of the above.

Q - We can have varying number of arguments for the overloaded form of () operator.

A - True B - False