Lab8_Quiz_section2

What is a one-dimensional array?

• Multi-row structure

• Linear collection

• Key-value pairs

• Random list

What does array.Length return?

• Total number of elements in the array

• Maximum index of array

• Number of dimensions in the array

• Data type of the array

How can you initialize an array with values?

• int[] arr = [1, 2, 3];

• int arr[] = {1, 2, 3};

• int[] arr =

  new int[3] {1, 2, 3};

• int[] arr =

  new int[3] [1, 2, 3];

What is the index of the second element in a single-dimensional array in C#?

• 0

• 1

• 2

• -2

If an array is declared as int[] arr = new int[4];, what will arr.Length return?

• 3

• 4

• 5

• 0

What will the following code output?

int[] arr = { 5, 10, 15, 20 };

Console.WriteLine(arr[3]);

• 5

• 10

• 15

• 20

What is the correct syntax to declare a two-dimensional array of integers in C#?

• int arr[];

• int[,] arr;

• int arr[,];

• int[] arr;

double[,] mark = new double[5,6];

From the code above, the array 'mark' can hold

• 56 elements

• 65 elements

• 30 elements

• 57 elements

The index of the first place in two-dimensional array is

• [0,0]

• [1,1]

• [0,1]

• [1,0]

Which method can be used to get the length of the first dimension in a 2D array?

• arr.Length(1)

• arr.Length(0)

• arr.GetLength(1)

• arr.GetLength(0)