Have you worked with LINQ for data queries?.

Yes, I have used LINQ for convenient and expressive data querying in C#. LINQ allows working with collections, databases, and other data sources using a unified syntax.

An example of using LINQ for filtering and sorting a list:

using System;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List<int> numbers = new List<int> { 5, 10, 3, 8, 1 };
        var filtered = numbers.Where(n => n > 3).OrderBy(n => n);
        foreach(var num in filtered)
        {
            Console.WriteLine(num);
        }
    }
}

LINQ simplifies working with data, making the code more readable and maintainable.