types of arrays in C# ...?

Single-dimensional arrays:

int[] numbers = new int[5];

Multidimensional arrays:

string[,] names = new string[5,4];

Array-of-arrays (jagged):

byte[][] scores = new byte[5][];

for (int x = 0; x < scores.Length; x++) 

{

   scores[x] = new byte[4];

}

You can also have larger arrays. For example, you can have a three-dimensional rectangular array:

int[,,] buttons = new int[4,5,3];

You can even mix rectangular and jagged arrays. For example, the following code declares a single-dimensional array of three-dimensional arrays of two-dimensional arrays of type int:

int[][,,][,] numbers;

// arrays.cs

using System;

class DeclareArraysSample

{

    public static void Main()

    {

        // Single-dimensional array

        int[] numbers = new int[5];

        // Multidimensional array

        string[,] names = new string[5,4];

        // Array-of-arrays (jagged array)

        byte[][] scores = new byte[5][];

        // Create the jagged array

        for (int i = 0; i < scores.Length; i++)

        {

            scores[i] = new byte[i+3];

        }

        // Print length of each row

        for (int i = 0; i < scores.Length; i++)

        {

            Console.WriteLine("Length of row {0} is {1}", i, scores[i].Length);

        }

        Console.ReadKey();

    }

}

hi,

I thing Array is simple collection of data of same type... there is no such specific type of array.
yes it might be one or Multi-dimensional arrays

please refer
http://www.tutorialspoint.com/csharp/csharp_arrays.htm
http://msdn.microsoft.com/en-us/library/aa288453(v=vs.71).aspx

hope this will help you.