Network C#

using System;
using System.Net;
using System.IO;
class MainClass
{
    public static void Main()
    {
        Uri resource = new Uri("http://www.google.com");
        WebRequest request = (WebRequest)WebRequest.Create(resource);
        //request.AuthenticationLevel = AuthenticationLevel.MutualAuthRequested;
        request.Credentials = CredentialCache.DefaultCredentials;
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        Console.WriteLine("Is mutually authenticated? {0}", response.IsMutuallyAuthenticated);
        Stream streamResponse = response.GetResponseStream();
        StreamReader streamRead = new StreamReader(streamResponse);
        string responseString = streamRead.ReadToEnd();
        Console.WriteLine(responseString);
        streamResponse.Close();
        streamRead.Close();
        response.Close();
    }
}