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.
Showing 10 of 330 questions
261. What is security permission set ?
The minimum set of security permissions that a J2EE product provider must provide for the execution of each component type.
262. What is security policy domain ?
A scope over which security policies are defined and enforced by a security administrator. A security policy domain has a collection of users (or principals), uses a well-defined authentication protocol or protocols for authenticating users (or principals), and may have groups to simplify setting of security policies.
263. What is security role ?
An abstract logical grouping of users that is defined by the application assembler. When an application is deployed, the roles are mapped to security identities, such as principals or groups, in the operational environment. In the J2EE server authentication service, a role is an abstract name for permission to access a particular set of resources. A role can be compared to a key that can open a lock. Many people might have a copy of the key; the lock doesn't care who you are, only that you have
264. What is security technology domain ?
A scope over which the same security mechanism is used to enforce a security policy. Multiple security policy domains can exist within a single technology domain.
265. What is security view ?
The set of security roles defined by the application assembler.
266. What is server certificate ?
Used with the HTTPS protocol to authenticate Web applications. The certificate can be self-signed or approved by a certificate authority (CA). The HTTPS service of the Sun Java System Application Server Platform Edition 8 will not run unless a server certificate has been installed.
267. What is server principal ?
The OS principal that the server is executing as.
268. What is service element ?
A representation of the combination of one or more Connector components that share a single engine component for processing incoming requests.
269. What is service endpoint interface ?
A Java interface that declares the methods that a client can invoke on a Web service.
270. What is servlet ?
A Java program that extends the functionality of a Web server, generating dynamic content and interacting with Web applications using a request-response paradigm.