Ilp C++ Final Quiz

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Srikanth_kanthet
S
Srikanth_kanthet
Community Contributor
Quizzes Created: 5 | Total Attempts: 905
| Attempts: 300
SettingsSettings
Please wait...
  • 1/10 Questions

    A special library function which is called automatically when no handler at any level catches the       exception

    • Exit()
    • Terminate()
    • Quit()
    • Ellipse
Please wait...
About This Quiz

The ILP C++ Final Quiz assesses advanced understanding of C++ programming concepts including virtual functions, exception handling, operator overloading, and memory management. This quiz is designed to challenge learners on key aspects of C++ and object-oriented programming.

Ilp C++ Final Quiz - Quiz

Quiz Preview

  • 2. 

              int main()           {             int a=2,b=3;             if ((a==2) || (b++==4))             cout<<"success";             return 0;           }           What will be the values of a and b ?

    • 2,3

    • 2,4

    • 2,5

    • None of the above

    Correct Answer
    A. 2,3
    Explanation
    The values of a and b will be 2 and 3 respectively. In the if statement, the first condition (a==2) is true, so the second condition (b++==4) is not evaluated. Therefore, the value of b remains unchanged. Since the if statement is true, the statement "success" is printed.

    Rate this question:

  • 3. 

    class VirtualClass {          int x,y;          public:          VirtualClass() {  x=1,y=2; }          virtual void operator<<(ostream&); }; // end of class          void VirtualClass::operator<<(ostream &os)          {  os<<this->x<<"\t"<<this->y;   }         int main() {                     VirtualClass vcObj;                     vcObj<<cout;                     return 0; }

    • 1 2

    • Compilation error

    • Run time error

    • None of the above

    Correct Answer
    A. 1 2
    Explanation
    The code defines a class called VirtualClass with two integer variables x and y. The constructor initializes x to 1 and y to 2. The class also overloads the

    Rate this question:

  • 4. 

    What is the output of the following code      int main() {           char s1[20]="Hello";           char s2[20]="Hai";           s2=s1;           cout<<"String1 : "<<s1;           cout<<"  String2 : "<<s2;           return 0;                                   }

    • String1 : Hello String2 : Hai

    • String1 : Hello String2 : Hello

    • Error : forbidden assignment of arrays

    • Error: incompatible types in assignment

    Correct Answer
    A. Error : forbidden assignment of arrays
    Explanation
    The given code tries to assign one array to another, which is not allowed in C++. This results in a compilation error stating "forbidden assignment of arrays". Arrays cannot be assigned directly to each other in C++, instead, you need to use functions like strcpy or strncpy to copy the contents of one array to another.

    Rate this question:

  • 5. 

    What is the output of the below code   int main(){ int i=0; for(i=0;i<20;i++)  switch(i) {     case 0:i+=5;     case 1:i+=2;     case 5:i+=5;     default: i+=4;    }  cout<<i;  return 0;  }

    • 84

    • 5

    • 22

    • 16

    Correct Answer
    A. 22
    Explanation
    The code starts with initializing the variable i to 0. Then, it enters a for loop with the condition i

    Rate this question:

  • 6. 

    What is the output of the following code class base{    public : virtual void func1()=0;            void func2() {               cout<<"\n In base, function2";  }  }; //end of class class derived : public base{    public :        void fun3()  {               cout<<"\n In derived , function3"; } };//end of class int main(){     derived d;     d.fun3();     return 0;  }

    • In derived, function1

    • In derived , function3

    • Compilation error

    • In base, function2

    Correct Answer
    A. Compilation error
    Explanation
    The code will result in a compilation error because the derived class is not implementing the pure virtual function func1() from the base class. Since func1() is declared as a pure virtual function in the base class, it must be implemented in any derived class that inherits from the base class. Since the derived class does not implement func1(), the code will not compile.

    Rate this question:

  • 7. 

    What is the output of the following code class base{    public : virtual void display()                        {  cout<<" \n I am in base-display ";}                        void virtual show()             {  cout<<" \n I am in base-show ";             }             virtual void show1(){cout<<"In base show1 ";} }; class derived : public base {}; int main(){  derived d;  cout<<sizeof(d)<<"\n";}

    • 4

    • 8

    • 10

    • 16

    Correct Answer
    A. 8
    Explanation
    The output of the code is 8. This is because the sizeof operator is used to determine the size of an object or data type in bytes. In this case, the object "d" is of type "derived", which is derived from the base class. Since the derived class does not have any additional member variables or functions, its size is the same as the base class, which is 8 bytes.

    Rate this question:

  • 8. 

     class Test{  public:          ~Test() {                  cout<<" Destructor"; } };   //end of class  int main() {          Test t;          t.~Test();          return 0;  }

    • Run time error

    • Destructor Destructor

    • Compilation error

    • Destructor

    Correct Answer
    A. Destructor Destructor
    Explanation
    The given code snippet creates an object of the Test class named "t" in the main function. Then, the destructor of the Test class is explicitly called using the syntax "t.~Test();". This results in the destructor being called twice, leading to the output "Destructor Destructor". Therefore, the correct answer is "Destructor Destructor".

    Rate this question:

  • 9. 

    What is the output of the following code int main(){    int i=4,j;    j=i<<2;    cout<<j;    return 0;}

    • 4

    • 8

    • 12

    • 16

    Correct Answer
    A. 16
    Explanation
    The code assigns the value 4 to the variable i. Then, it performs a left shift operation on i by 2 bits, resulting in 16. Finally, it prints the value of j, which is 16.

    Rate this question:

  • 10. 

    #define SQR(x) (x*x)    main()    {         int a,b=3;         a=SQR(b+2);         cout<<a;         return 0;     }

    • 11

    • 25

    • Error

    • 17

    Correct Answer
    A. 11
    Explanation
    The correct answer is 11.

    In the given code, the macro SQR(x) is defined as (x*x).

    In the main function, the value of b is 3.

    The expression a=SQR(b+2) is evaluated as a=(b+2)*(b+2), which becomes a=3+2*3+2, which simplifies to a=11.

    Therefore, the value of a is 11, which is outputted by the cout statement.

    Rate this question:

Quiz Review Timeline (Updated): Feb 17, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Feb 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 12, 2012
    Quiz Created by
    Srikanth_kanthet
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.