Arrays

Which of the following correctly declares an array of 10 integers in C?

• int arr(10);

• int arr[10];

• array int arr[10];

Which of the following statements about arrays is TRUE in C?

• Arrays can hold different data types.

• The size of an array can be changed during execution.

• An array stores elements of the same type in contiguous memory.

What is the index of the first element in a C array?

• 0

• 1

• -1

What is the correct way to initialize all elements of an array to zero in C?

• int arr[5] = (0);

• int arr[5] = {0};

• int arr[5] = 0;

How are arrays stored in memory?

• All elements are stored in a contiguous block of memory.

• Each element is stored at a random memory location.

• Elements are dynamically linked to the next element in memory.

Which of the following is NOT a valid array declaration?

• 
  int arr[10];

• int arr[3] = {1, 2, 3, 4};

• int arr[] = {1, 2, 3};

What is the output?

#include <stdio.h>

int main()

{

int arr[2];

arr[0] = 1;

arr[1] = arr[0] + 1;

printf("%d", arr[1]);

return 0;

}

• 0

• 1

• 2

The size of the array should always be _____

• Positive

• Negative

• Whole number

What will this code print?

#include <stdio.h>

int main()

{

int arr[2][2] = {{1,2},{3,4}};

printf("%d", arr[1][0]);

return 0;

}

• 1

• 2

• 3

Which of the following statement is correct about array?

• • The size of the array is fixed.

• The size of the array is dynamic.

• Random access is not possible in an array.