ARRAY C++

Identify what do arrays do.

• hold addresses

• hold values under a single name

• hold one value

• hold values under a multiple name

Select the valid indexes for the array shown below.

int myArray[25];

• 0-25

• 1-25

• 0-24

• 1-24

Identify the correct way declaring an array "Arr" which is an integer array having 20 element.

• Array [] =Arr[20];

• int Arr[20];

• int[20] Arr;

• int Arr= new [20];

Identify the statement that declare an array ABC of 5 elements of type int and initialize all elements to 100.

• int ABC[5]= {100,100,100,100,100};

• int ABC[ ]= {5,100};

• int ABC[5]= {5,100};

• int[5] ABC= {100,100,100,100,100};

Identify statements correctly to declare an array Arr that have 5 elements and initialize it to 0 using for loop.

• int Arr[20]; for(i=0; i<20 ; ++i) { myArr[i]=0; }

• int Arr[5]; for(i=0, i<5, ++i) { myArr[i]=0; }

• int Arr[5]; for(i=0; i<5 ; ++i) { myArr[i]=0; }

• int Arr[5]; for(i=0; i<20 ; ++i) { myArr[i]=0; }

An entire array be printed out at once.

• True

• False

Indicate the problem with the following code fragment.

• Array indexes start at 1 not 0

• Arrays must be integers

• Should be cin >> scores[0];

• Array indexes must be less than the size of the array

Select the most efficient way to assign or print out arrays.

• loop

• function

• selection

• pointer

Choose the value for variable myMarks if the following statements is executed.

int marks [4] = {7, 5, 4, 9};

myMarks = marks [2];

• 7

• 5

• 4

• 9

Identify the BEST answer for advantage of an array.

• store data

• store multiple data

• store multiple data and process later

• store multiple data with single data type