250+ TOP MCQs on Structures and Functions and Answers

C helps anyone preparing for Huawei and other companies C interviews. One should practice these Objective Questions and answers continuously for 2-3 months to clear Huawei interviews on C Programming language.

Here is a listing of C Objective Questions on “Structures and Functions” along with answers, explanations and/or solutions:

1. What will be the output of the following C code?

```
    #include 
```
```
    struct point
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    int main()
```
```
    {
```
```
        struct point p = {1};
```
```
        struct point p1 = {1};
```
```
        if(p == p1)
```
```
            printf("equaln");
```
```
        else
```
```
            printf("not equaln");
```
```
    }
```

a) Compile time error
b) equal
c) depends on the standard
d) not equal
Answer: a
Clarification: None.

2. What will be the output of the following C code?

```
    #include 
```
```
    struct point
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    struct notpoint
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    struct point foo();
```
```
    int main()
```
```
    {
```
```
        struct point p = {1};
```
```
        struct notpoint p1 = {2, 3};
```
```
        p1 = foo();
```
```
        printf("%dn", p1.x);
```
```
    }
```
```
    struct point foo()
```
```
    {
```
```
        struct point temp = {1, 2};
```
```
        return temp;
```
```
    }
```

a) Compile time error
b) 1
c) 2
d) Undefined behaviour
Answer: a
Clarification: None.

3. What will be the output of the following C code?

```
    #include 
```
```
    struct point
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    struct notpoint
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    int main()
```
```
    {
```
```
        struct point p = {1};
```
```
        struct notpoint p1 = p;
```
```
        printf("%dn", p1.x);
```
```
    }
```

a) Compile time error
b) 1
c) 0
d) Undefined
Answer: a
Clarification: None.

4. What will be the output of the following C code?

```
    #include 
```
```
    struct point
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    struct notpoint
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    void foo(struct point);
```
```
    int main()
```
```
    {
```
```
        struct notpoint p1 = {1, 2};
```
```
        foo(p1);
```
```
    }
```
```
    void foo(struct point p)
```
```
    {
```
```
        printf("%dn", p.x);
```
```
    }
```

a) Compile time error
b) 1
c) 0
d) Undefined
Answer: a
Clarification: None.

5. What will be the output of the following C code?

```
    #include 
```
```
    struct point
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    void foo(struct point*);
```
```
    int main()
```
```
    {
```
```
        struct point p1 = {1, 2};
```
```
        foo(&p1);
```
```
    }
```
```
    void foo(struct point *p)
```
```
    {
```
```
        printf("%dn", *p.x++);
```
```
    }
```

a) Compile time error
b) Segmentation fault/code crash
c) 2
d) 1
Answer: a
Clarification: None.

6. What will be the output of the following C code?

```
    #include 
```
```
    struct point
```
```
    {
```
```
        int x;
```
```
        int y;
```
```
    };
```
```
    void foo(struct point*);
```
```
    int main()
```
```
    {
```
```
        struct point p1 = {1, 2};
```
```
        foo(&p1);
```
```
    }
```
```
    void foo(struct point *p)
```
```
    {
```
```
        printf("%dn", *p->x++);
```
```
    }
```

a) Compile time error
b) 1
c) Segmentation fault/code crash
d) 2
Answer: a
Clarification: None.

7. What will be the output of the following C code?

```
    #include 
```
```
    struct student fun(void)
```
```
    {
```
```
        struct student
```
```
        {
```
```
            char *name;
```
```
        };
```
```
        struct student s;
```
```
        s.name = "alan";
```
```
        return s;
```
```
    }
```
```
    void main()
```
```
    {
```
```
        struct student m = fun();
```
```
        printf("%s", m.name);
```
```
    }
```

a) Compile time error
b) alan
c) Nothing
d) Varies
Answer: a
Clarification: None.

8. What will be the output of the following C code?

```
    #include 
```
```
    struct student
```
```
    {
```
```
        char *name;
```
```
    };
```
```
    struct student fun(void)
```
```
    {
```
```
        struct student s;
```
```
        s.name = "alan";
```
```
        return s;
```
```
    }
```
```
    void main()
```
```
    {
```
```
        struct student m = fun();
```
```
        printf("%s", m.name);
```
```
    }
```

a) Nothing
b) alan
c) Run time error
d) Varies
Answer: b
Clarification: None.

250+ TOP MCQs on Character Class Testing & Conversions and Answers

250+ TOP MCQs on Structures and Functions and Answers

Leave a Comment Cancel Reply

Interview Questions List

Related Posts

Leave a Comment Cancel Reply