Pergunta de entrevista da empresa Tech Mahindra

F2F Round Which projects you worked on? What was your role? What is polymorphism? Explain Override with example? What is interface? Why interface? How to get database values in Javascript? What is difference between MVC and ASP.NET Whats is Tempdata?How TempData it stores values? What is routing? What is WEB API? Difference between WEBAPI and WCF?