J2EE (Java ENTERPRISE Edition) standards were first proposed by Oracle (Sun Microsystems) to help developers develop, build and deploy reusable, distributed, reliable, scalable, portable and secure enterprise-level business applications. In simple terms, J2EE constitutes a set of frameworks, a collection of APIs and various J2EE technologies like JSP, Servlets etc that are used as standards for simplifying the development and building of large scale applications. 

It is aimed at easing the development, build and deployment process of enterprise-level applications that can be RUN on different PLATFORMS which supports Java. J2EE remains the most popular standard followed by the Java developers community which is why it is important for developers to know about J2EE concepts and have hands-on experience in them. 

In this article, we will SEE the most commonly asked interview questions on J2EE for both freshers and experienced professionals.