Pointer MCQs with Answers 2027

Q161

What will be the output of the following C code (if run with no options or arguments)?

#include <stdio.h>
int main(int argc, char *argv[])
{
    printf("%d\n", argc);
    return 0;
}

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Q162

Open question

Comment on the following C statement.

const int *ptr;

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Q163

Open question

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    char a[10][5] = {"hi", "hello", "fellows"};
    printf("%p\n", a);
    printf("%p", a[0]);
}

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Q164

Open question

What will be the output of the following C code on a 32-bit system?

#include <stdio.h>
void main()
{
    char *a[10] = {"hi", "hello", "how"};
    printf("%d\n", sizeof(a[1]));
}

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Q165

Open question

What will be the output of the following C code?

#include <stdio.h>
void f(int a[2][])
{
    a[0][1] = 3;
    int i = 0, j = 0;
    for (i = 0;i < 2; i++)
    for (j = 0;j < 3; j++)
    printf("%d", a[i][j]);
}
void main()
{
    int a[2][3] = {0};
    f(a);
}

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Q166

Open question

What will be the output of the following C code?

#include <stdio.h>
int mul(int a, int b, int c)
{
    return a * b * c;
}
void main()
{
    int *function_pointer;
    function_pointer = mul;
    printf("The product of three numbers is:%d",
    function_pointer(2, 3, 4));
}

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Q167

Open question

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int ary[4] = {1, 2, 3, 4};
    int *p = ary + 3;
    printf("%d\n", p[-2]);
}

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Q168

Open question

What will be the output of the following C code?

#include <stdio.h>
int x = 0;
void main()
{
    int *ptr = &x;
    printf("%p\n", ptr);
    x++;
    printf("%p\n ", ptr);
}

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Q169

Open question

Which of the following is not possible in C?

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Q170

Open question

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    int no = 5;
    char name[20];
};
void main()
{
    struct student s;
    s.no = 8;
    printf("hello");
}

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Q171

Open question

Which of the following can never be sent by call-by-value?

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Q172

Open question

What will be the output of the following C code?

#include <stdio.h>
void first()
{
    printf("Hello World");
}
void main()
{
    void *ptr() = first;
    ptr++
    ptr();
}

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Q173

Open question

An array of strings can be initialized by . . . . . . . .

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Q174

Open question

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    char a[1][5] = {"hello"};
    printf("%s", a[0]);
    return 0;
}

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Q175

Open question

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    char *s = "hello";
    char *p = s;
    printf("%p\t%p", p, s);
}

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Q176

Open question

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    char *str = "hello world";
    char strary[] = "hello world";
    printf("%d %d\n", strlen(str), strlen(strary));
    return 0;
}

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Q177

Open question

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    char *str = "hello, world!!\n";
    char strc[] = "good morning\n";
    strcpy(strc, str);
    printf("%s\n", strc);
    return 0;
}

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Q178

Open question

A program that has no command line arguments will have argc . . . . . . . .

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Q179

Open question

What is argv[0] in command line arguments?

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Q180

Open question

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    void *p;
    int a[4] = {1, 2, 3, 4};
    p = &a[3];
    int *ptr = &a[2];
    int n = (int*)p - ptr;
    printf("%d\n", n);
}

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