Servlet 3.0 is an update of Servlet 2.5. Servlet 3.0 focuses on extensibility and pluggability. Key features in Servlet 3.0 can be categorized into the following areas:

  • Easier development with annotations.
  • Web application modularity.
  • Asynchronous Servlet.
  • Programmatic instantiation of Servlets/Filters.
  • Security Enhancements.
BY Best Interview Question ON 19 Jan 2019