Explore topic-wise MCQs in Technical MCQs.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.

1. 

    #include<iostream>    using namespace std;    namespace lfc    {        int x = 10;    }    namespace lfc    {        int x = 20;    }    int main ()    {        int x = 30;        lfc::x;        lfc::x;        cout << x;        return 0;    }
10.Which keyword is used to access the variable in the namespace?

A. using
B. dynamic
C. const
D. static
E.
Answer» B. dynamic
Discussion
2. 

    #include<iostream>    using namespace std;    namespace lfc1    {        int x = 10;    }    namespace lfc2    {        int x = 20;    }    int main ()    {        int x = 30;        lfc1::x;        lfc2::x;        cout << x;        return 0;    }
9.Which of the following is correct option?

A. 30
B. 20
C. 10
D. Compile Error
Answer» E.
Discussion
3. 

    #include<iostream>    using namespace std;    namespace lfc1    {        double var =30.1234;    }    namespace lfc2    {        double var = 13.5478;    }    int main ()    {        double a;        a = lfc1::var - lfc2::var;        cout << a;        return 0;   }
8.Which of the following is correct option?

A. 30
B. 20
C. 10
D. Compile Error
Answer» B. 20
Discussion
4. 

#include<iostream>using namespace std;namespace lfc1{    int var = 30;}namespace lfc2{    double var = 13.5478;}int main (){    int a;    a = lfc1::var + lfc2::var;    cout << a;        return 0; }
7.Which of the following is correct option?

A. 16.5756
B. 17
C. 15
D. 16.57
Answer» B. 17
Discussion
5.

Which of the following is correct option?

A. 43.5478
B. 43
C. 44
D. 30
Answer» C. 44
Discussion
6.

The use of Namespace is to structure a program into logical units?

A. TRUE
B. FALSE
C. May Be
D. Can't Say
Answer» B. FALSE
Discussion
7.

Which operator is used to signify the namespace in c++?

A. conditional operator
B. ternary operator
C. scope operator
D. None of the mentioned
Answer» D. None of the mentioned
Discussion