C Pointers

What do the following declaration signify?

char *arr[10];

• arr is a array of 10 character pointers.

• arr is a array of function pointer.

• arr is a array of characters.

• arr is a pointer to array of characters.

What is the output of C Program.?

int main()

{

char grade[] = {'A','B','C'};

printf("GRADE=%c, ", *grade);

printf("GRADE=%d", grade);

}

• GRADE=some address of array, GRADE=A

• GRADE=A, GRADE=some address of array

• GRADE=A, GRADE=A

• Compiler error

What is the output of C program.?

int main()

{

char grade[] = {'A','B','C'};

printf("GRADE=%d, ", *grade);

printf("GRADE=%d", grade[0]);

}

• A A

• 65 A

• 65 65

• None of the above

What is the output of C program with arrays and pointers.?

int main()

{

int a[3] = {20,30,40};

printf("%d", *(a+1));

}

• 20

• 30

• 40

• Compiler error

What is the output of following program?

# include <stdio.h>

void fun(int x)

{

x = 30;

}

int main()

{

int y = 20;

fun(y);

printf("%d", y);

return 0;

}

• 30

• 20

• Compiler Error

• Runtime Error

Output of following program?

# include <stdio.h>

void fun(int *ptr)

{

*ptr = 30;

}

int main()

{

int y = 20;

fun(&y);

printf("%d", y);

return 0;

}

• 20

• 30

• Compiler Error

• Runtime Error

Pointers refer to

• Memory Address

• Value in Memory

• All the above

Computer memory locations are

• Bi linear

• Linear

• Non Linear

Computer address values in reality are in

• Decimal

• Binary

• Hexadecimal

• C code

One Byte is equal to

• 8 bits

• 4 bits

• 2 bits

• 1 bit