ASP.Net What is Postback in ASP.Net ? Explain the use of Global.asax ? What are the different Validation Controls in ASP.Net ? Explain different stages of an ASP.Net page ? What are Page Life Cycle Events ? Explain Caching in ASP.Net ? What are the different Session State Modes ? What is Impersonation in ASP.Net ? Explain ASP.Net Application Life Cycle Overview for IIS7.0 ? What is an HTTP module ? What is an HTTP handler ? What is Application Manager ? What are the different HTTP Authentication Schemes in .Net Framework ? What are the different Authentication Options in Web.Config ? Explain the difference between Globalization and Localization in ASP.NET ? What is ASP.Net Identity ?