Technical interview questions and answers are important for any J2EE Interview because companies want candidates who understand enterprise Java components, servlets, JSP, JDBC, MVC frameworks, and server-side development. J2EE is widely used for building scalable and secure enterprise applications, making it a key topic in Java-based interviews. Companies like TCS, Infosys, Wipro, Cognizant, and Accenture often include J2EE questions in their placement tests and technical rounds to evaluate backend development skills. This guide provides fully solved J2EE interview questions with clear explanations, helping freshers and job seekers build strong fundamentals. Preparing these questions will help you perform confidently in technical interviews, project discussions, and Java-based coding assessments.
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101. What is form-based authentication ?
An authentication mechanism in which a Web container provides an application-specific form for logging in. This form of authentication uses Base64 encoding and can expose user names and passwords
102. What is general entity ?
An entity that is referenced as part of an XML document's content, as distinct from a parameter entity, which is referenced in the DTD. A general entity can be a parsed entity or an unparsed entity.
103. What is group ?
An authenticated set of users classified by common traits such as job title or customer profile. Groups are also associated with a set of roles, and every user that is a member of a group inherits all the roles assigned to that group.
104. What is handle ?
An object that identifies an enterprise bean. A client can serialize the handle and then later deserialize it to obtain a reference to the enterprise bean.
105. What is Interview Questions - Home handle ?
An object that can be used to obtain a reference to the Interview Questions - Home interface. A Interview Questions - Home handle can be serialized and written to stable storage and de-serialized to obtain the reference.
106. What is Interview Questions - Home interface ?
One of two interfaces for an enterprise bean. The Interview Questions - Home interface defines zero or more methods for managing an enterprise bean. The Interview Questions - Home interface of a session bean defines create and remove methods, whereas the Interview Questions - Home interface of an entity bean defines create, finder, and remove methods.
107. What is HTML ?
Hypertext Markup Language. A markup language for hypertext documents on the Internet. HTML enables the embedding of images, sounds, video streams, form fields, references to other objects with URLs, and basic text formatting.
108. What is HTTP ?
Hypertext Transfer Protocol. The Internet protocol used to retrieve hypertext objects from remote hosts. HTTP messages consist of requests from client to server and responses from server to client.
109. What is HTTPS ?
HTTP layered over the SSL protocol.
110. What is IDL ?
Interface Definition Language. A language used to define interfaces to remote CORBA objects. The interfaces are independent of operating systems and programming languages.