1.struct vs class , 2.difference between task and thread 3.dependancy injection in .net 4.index in sql 5.controllers in .net 6.sales data is being displayed in ur dashboard and for some reasons its very slow how to improve it 7. if user comes and reports angular application are out of sync what action will u take 8.how do u add new customer(name and email insertion) in angular by passing both the values 9. a simple c# program where array [1,2,3,4,5] becomes [5,1,2,3,4] 10.a query to return dublicates in an employee table