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Welcome to the Namespaces and Exceptions in C++ MCQs Page

Dive deep into the fascinating world of Namespaces and Exceptions in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Namespaces and Exceptions in C++, a crucial aspect of Object Oriented Programming Using C++. In this section, you will encounter a diverse range of MCQs that cover various aspects of Namespaces and Exceptions in C++, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming Using C++.

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Check out the MCQs below to embark on an enriching journey through Namespaces and Exceptions in C++. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming Using C++.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Namespaces and Exceptions in C++. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Namespaces and Exceptions in C++ MCQs | Page 1 of 2

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Q1.
Which operator is used to signify the namespace?
Discuss
Answer: (c).scope operator
Discuss
Answer: (a).Namespace is used to group class, objects and functions
Discuss
Answer: (b).To structure a program into logical units
Q4.
What is the general syntax for accessing the namespace variable?
Discuss
Answer: (a).namespaceid::operator
Q5.
What is the output of this program?
    #include <iostream>
    using namespace std;
    namespace first
    {
        int var = 5;
    }
    namespace second
    {
        double var = 3.1416;
    }
    int main ()
    {
        int a;
        a = first::var + second::var;
        cout << a;
        return 0;
   }
Discuss
Answer: (b).8
Q6.
What is the output of these program?
    #include <iostream>
    using namespace std;
    namespace first
    {
        int x = 5;
        int y = 10;
    }
    namespace second
    {
        double x = 3.1416;
        double y = 2.7183;
    }
    int main ()
    {
        using first::x;
        using second::y;
        bool a, b;
        a = x > y;
        b = first::y < second::x;
        cout << a << b;
        return 0;
    }
Discuss
Answer: (d).10
Q7.
What is the output of this program?
    #include <iostream>
    using namespace std;
    namespace Box1
    {
        int a = 4;
    }
    namespace Box2
    {
        int a = 13;
    }
    int main ()
    {
        int a = 16;
        Box1::a;
        Box2::a;
        cout << a;
        return 0;
    }
Discuss
Answer: (c).16
Q8.
What is the output of this program?
    #include <iostream>
    using namespace std
    namespace space
    {
        int x = 10;
    }
    namespace space
    {
        int y = 15;
    }
    int main(int argc, char * argv[])
    {
        space::x = space::y =5;
        cout << space::x << space::y;
    }
Discuss
Answer: (c).55
Q9.
What is the output of this program?
    #include <iostream>
    using namespace std;
    namespace extra
    {
        int i;
    }
    void i()
    {
        using namespace extra;
        int i;
        i = 9;
        cout << i;
    }
    int main()
    {
        enum  letter { i, j};
        class i { letter j; };
        ::i();
        return 0;
    }
Discuss
Answer: (a).9
Q10.
Which keyword is used to access the variable in namespace?
Discuss
Answer: (a).using
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