Single Dimensional Array - Quiz

What is right way to Initialize array?

  • Aint num[6] = { 2, 4, 12, 5, 45, 5 };
  • Bint n{} = { 2, 4, 12, 5, 45, 5 };
  • Cint n{6} = { 2, 4, 12 };
  • Dint n(6) = { 2, 4, 12, 5, 45, 5 };

Size of the array need not be specified, when

  • AInitialization is a part of definition
  • BIt is a declaratrion
  • CIt is a formal parameter
  • DAll of these

What will be printed after execution of the following code? 

void main()
{
      int arr[10] = {1,2,3,4,5};
      printf("%d", arr[5]);
}

  • AGarbage Value
  • B5
  • C6

What will be the output of the following code? 

void main()
{
      int a[10];
      printf("%d %d", a[-1], a[12]);
}

  • A0 0
  • BGarbage value 0
  • C0 Garbage Value
  • DGarbage vlaue Garbage Value

What does the following declaration mean? int (*ptr)[10];

  • Aptr is array of pointers to 10 integers
  • Bptr is a pointer to an array of 10 integers
  • Cptr is an array of 10 integers
  • Dptr is an pointer to array

What will be the output of the program if the array begins at 65472 and each integer occupies 2 bytes? 

#include
void main()
{
    int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 1, 7, 8, 9, 0};
    printf("%u, %u", a+1, &a+1);
}

  • A65474, 65488
  • B65480, 65488
  • C65480, 65496
  • D 65474, 65476

What will be the output of the program if the array begins at address 65486? 

#include<stdio.h>
void main()
{
    int arr[] = {12, 14, 15, 23, 45};
    printf("%u, %u", arr, &arr);
}

  • A65486, 65488
  • B65486, 65490
  • C65486, 65487
  • D65486, 65486

What will be the output of the program? 

#include<stdio.h>
void main()
{
    float arr[] = {12.4, 2.3, 4.5, 6.7};
    printf("%d", sizeof(arr)/sizeof(arr[0]));
}

  • A5
  • B4
  • C6
  • Dno output

Which of the following statements are correct about the program below? 

#include<stdio.h>
void main()
{
    int size, i;
    scanf("%d", &size);
    int arr[size];
    for(i=1; i<=size; i++)
    {
        scanf("%d", arr[i]);
        printf("%d", arr[i]);
    }
}

  • AThe code is erroneous since the statement declaring array is invalid.
  • BThe code is erroneous since the subscript for array used in for loop is in the range 1 to size.
  • C The code is correct and runs successfully.
  • DThe code is erroneous since the values of array are getting scanned through the loop.

Which of the following function is more appropriate for reading in a multi-word string?

  • Ascanf()
  • Bgets()
  • Cprintf()
  • Dputs()

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