TaskBasedAsynchronousPattern_TAP created by kenanhancer - https://repl.it/@kenanhancer/TaskBasedAsynchronousPatternTAP

TaskBasedAsynchronousPattern_TAP.cs

using System;
using System.Threading.Tasks;
using System.Net;

class MainClass {
  public static void Main (string[] args) {

    MainAsync(args);

    Console.WriteLine("Main thread is working.");

    Console.ReadLine();
  }

  public static async Task MainAsync(string[] args)
  {
    IPHostEntry result = await CustomDnsWithTAP.GetHostEntryAsync("www.kenanhancer.com");

    Console.WriteLine($"Worker thread is working and result is {result.HostName}");
  }
}

public static class CustomDnsWithTAP
{
    public static Task<IPHostEntry> GetHostEntryAsync(string hostNameOrAddress)
    {
        return Task.Run(() => Dns.GetHostEntry(hostNameOrAddress));
    }
}