C MCQ set number 00696

1. What is the output of this C code?

```
    #include <stdio.h>
```
```
    void main()
```
```
    {
```
```
        int i = 5, k;
```
```
        if (i == 0)
```
```
            goto label;
```
```
            label: printf("%d", i);
```
```
            printf("Hey");
```
```
    }
```

a) 5
b) Hey
c) 5 Hey
d) Nothing

Answer

Answer: c [Reason:] None.

2. goto can be used to jump from main to within a function
a) true
b) false
c) depends
d) varies

Answer

Answer: b [Reason:] None.

3. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        printf("%d ", 1);
```
```
        goto l1;
```
```
        printf("%d ", 2);
```
```
        l1:goto l2;
```
```
        printf("%d ", 3);
```
```
        l2:printf("%d ", 4);
```
```
   }
```

a) 1 4
b) Compile time error
c) 1 2 4
d) 1 3 4

Answer

Answer: a [Reason:] None.

4. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        printf("%d ", 1);
```
```
        l1:l2:
```
```
        printf("%d ", 2);
```
```
        printf("%dn", 3);
```
```
    }
```

a) Compile time error
b) 1 2 3
c) 1 2
d) 1 3

Answer

Answer: b [Reason:] None.

5. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        printf("%d ", 1);
```
```
        goto l1;
```
```
        printf("%d ", 2);
```
```
    }
```
```
    void foo()
```
```
    {
```
```
        l1: printf("3 ", 3);
```
```
    }
```

a) 1 2 3
b) 1 3
c) 1 3 2
d) Compile time error

Answer

Answer: d [Reason:] None.

6. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int i = 0, j = 0;
```
```
        while (i < 2)
```
```
        {
```
```
            l1: i++;
```
```
            while (j < 3)
```
```
            {
```
```
                printf("loopn");
```
```
                goto l1;
```
```
            }
```
```
        }
```
```
   }
```

a) loop loop
b) Compile time error
c) loop loop loop loop
d) Infinite loop

Answer

Answer: d [Reason:] None.

7. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int i = 0, j = 0;
```
```
        while (l1: i < 2)
```
```
        {
```
```
            i++;
```
```
            while (j < 3)
```
```
            {
```
```
                printf("loopn");
```
```
                goto l1;
```
```
            }
```
```
        }
```
```
   }
```

a) loop loop
b) Compile time error
c) loop loop loop loop
d) Infinite loop

Answer

Answer: b [Reason:] None.

8. What is the output of this C code?

```
    #include <stdio.h>
```
```
    int main()
```
```
    {
```
```
        int i = 0, j = 0;
```
```
        l1: while (i < 2)
```
```
            {
```
```
                i++;
```
```
                while (j < 3)
```
```
                {
```
```
                    printf("loopn");
```
```
                    goto l1;
```
```
                }
```
```
            }
```
```
   }
```

a) loop loop
b) Compile time error
c) loop loop loop loop
d) Infinite loop

Answer

Answer: a [Reason:] None.

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