Pointer - C Programming MCQ Questions and Answers

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81.
What is the first argument in command line arguments?

A. The number of command-line arguments the program was invoked with;

B. A pointer to an array of character strings that contain the arguments

C. Nothing

D. None of the mentioned

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82.

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int i = 0, j = 1;
    int *a[] = {&i, &j};
    printf("%d", (*a)[1]);
    return 0;
}

A. Compile time error

B. Undefined behaviour

C. 1

D. Some garbage value

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83.
Which of the following is the correct syntax to send an array as a parameter to function?

A. func(&array);

B. func(#array);

C. func(*array);

D. func(array[size]);

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84.
Which is true for b, if b is defined as "int *b[10];"?

A. The definition only allocates 10 pointers and does not initialize them

B. Initialization must be done explicitly

C. The definition only allocates 10 pointers and does not initialize them & Initialization must be done explicitly

D. Error

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85.

Comment on the output of the following C code.

#include <stdio.h>
int main()
{
    int a = 10;
    int **c -= &&a;
}

A. You cannot apply any arithmetic operand to a pointer

B. We don't have address of an address operator

C. We have address of an address operator

D. None of the mentioned

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86.

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int ary[2][3];
    ary[][] = {{1, 2, 3}, {4, 5, 6}};
    printf("%d\n", ary[1][0]);
}

A. Compile time error

B. 4

C. 1

D. 2

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87.

What makes the following declaration denote?

char *str[5];

A. str is an array of 5 element pointer to type char

B. str is a pointer to an array of 5 elements

C. str is a function pointer of 5 elements returning char

D. none of the mentioned

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88.

What will be the output of the following C code?

#include <stdio.h>
void foo(int *ary[]);
int main()
{
    int ary[2][3];
    foo(ary);
}
void foo(int *ary[])
{
    int i = 10, j = 2, k;
    ary[0] = &i;
    ary[1] = &j;
    *ary[0] = 2;
    for (k = 0;k < 2; k++)
    printf("%d\n", *ary[k]);
}

A. 2 2

B. Compile time error

C. Undefined behaviour

D. 10 2

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89.

What will be the output of the following C code?

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

A. 1

B. Compile time error

C. Address of a

D. Junk value

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90.

What will be the output of the following C code?

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

A. Run time error

B. Nothing

C. hello

D. Varies

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81.
What is the first argument in command line arguments?

Answer & Solution

82.
What will be the output of the following C code?

`#include <stdio.h> int main() { int i = 0, j = 1; int a[] = {&i, &j}; printf("%d", (a)[1]); return 0; }`

Answer & Solution

83.
Which of the following is the correct syntax to send an array as a parameter to function?

Answer & Solution

84.
Which is true for b, if b is defined as "int *b[10];"?

Answer & Solution

85.
Comment on the output of the following C code.

`#include <stdio.h> int main() { int a = 10; int **c -= &&a; }`

Answer & Solution

86.
What will be the output of the following C code?

`#include <stdio.h> int main() { int ary[2][3]; ary[][] = {{1, 2, 3}, {4, 5, 6}}; printf("%d\n", ary[1][0]); }`

Answer & Solution

87.
What makes the following declaration denote?

`char *str[5];`

Answer & Solution

88.
What will be the output of the following C code?

`#include <stdio.h> void foo(int ary[]); int main() { int ary[2][3]; foo(ary); } void foo(int ary[]) { int i = 10, j = 2, k; ary[0] = &i; ary[1] = &j; ary[0] = 2; for (k = 0;k < 2; k++) printf("%d\n", ary[k]); }`

Answer & Solution

89.
What will be the output of the following C code?

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

Answer & Solution

90.
What will be the output of the following C code?

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

Answer & Solution

Read More Section(Pointer)

Pointer - C Programming MCQ Questions and Answers

81. What is the first argument in command line arguments?

Answer & Solution

82. What will be the output of the following C code? #include <stdio.h> int main() { int i = 0, j = 1; int *a[] = {&i, &j}; printf("%d", (*a)[1]); return 0; }

Answer & Solution

83. Which of the following is the correct syntax to send an array as a parameter to function?

Answer & Solution

84. Which is true for b, if b is defined as "int *b[10];"?

Answer & Solution

85. Comment on the output of the following C code. #include <stdio.h> int main() { int a = 10; int **c -= &&a; }

Answer & Solution

86. What will be the output of the following C code? #include <stdio.h> int main() { int ary[2][3]; ary[][] = {{1, 2, 3}, {4, 5, 6}}; printf("%d\n", ary[1][0]); }

Answer & Solution

87. What makes the following declaration denote? char *str[5];

Answer & Solution

88. What will be the output of the following C code? #include <stdio.h> void foo(int *ary[]); int main() { int ary[2][3]; foo(ary); } void foo(int *ary[]) { int i = 10, j = 2, k; ary[0] = &i; ary[1] = &j; *ary[0] = 2; for (k = 0;k < 2; k++) printf("%d\n", *ary[k]); }

Answer & Solution

89. What will be the output of the following C code? #include <stdio.h> void main() { int a[3] = {1, 2, 3}; int *p = a; int *r = &p; printf("%d", (**r)); }

Answer & Solution

90. What will be the output of the following C code? #include <stdio.h> struct student { int no; char name[20]; }; void main() { struct student s; s.no = 8; printf("hello"); }

Answer & Solution

Read More Section(Pointer)

81.
What is the first argument in command line arguments?

82.
What will be the output of the following C code?

`#include <stdio.h> int main() { int i = 0, j = 1; int a[] = {&i, &j}; printf("%d", (a)[1]); return 0; }`

83.
Which of the following is the correct syntax to send an array as a parameter to function?

84.
Which is true for b, if b is defined as "int *b[10];"?

85.
Comment on the output of the following C code.

`#include <stdio.h> int main() { int a = 10; int **c -= &&a; }`

86.
What will be the output of the following C code?

`#include <stdio.h> int main() { int ary[2][3]; ary[][] = {{1, 2, 3}, {4, 5, 6}}; printf("%d\n", ary[1][0]); }`

87.
What makes the following declaration denote?

`char *str[5];`

88.
What will be the output of the following C code?

`#include <stdio.h> void foo(int ary[]); int main() { int ary[2][3]; foo(ary); } void foo(int ary[]) { int i = 10, j = 2, k; ary[0] = &i; ary[1] = &j; ary[0] = 2; for (k = 0;k < 2; k++) printf("%d\n", ary[k]); }`

89.
What will be the output of the following C code?

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

90.
What will be the output of the following C code?

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