J2EE interview questions and answers

J2EE interview questions and answers for freshers and experienced candidates. These interview questions and answers on J2EE will help you strengthen your technical skills, prepare for the interviews and quickly revise the concepts. Many candidates appear for the interview for one role - many of the them give the right answers to the questions asked. The one who provides the best answer with a perfect presentation is the one who wins the interview race. The set of J2EE interview questions here ensures that you offer a perfect answer to the interview questions posed to you.
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J2EE interview questions and answers


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J2EE interview practice test - 10 questions
J2EE Architecture interview questions

Explain the four types of container that the J2EE specification defines.
i.e. applet container, application-client container, web container and EJB container.................

J2EE web container interview questions

Provide an overview of web container, Explain the Java Servlet programming model, Describe in brief about deployment descriptors, Explain the J2EE container architecture..........

J2EE Application interview questions

Explain the components of J2EE architecture, i.e. Application components, containers and J2EE APIs ................

EJB Architecture interview questions

Briefly describe EJB architecture. Explain the various services that the EJB container offers to the application developer............

EJB session and entity context interview questions

What is an EJB Context? What is the difference between sessioncontext and entitycontext?................

EJB View interview questions

What is Remote client view in EJB 2.0? What is Local client view in EJB 2.0?................

EJB types interview questions

Explain different types of EJB – Session beans, Entity beans and Message-driven beans. Explain types of session beans – stateless, stateful.................

EJB roles interview questions

Describe the roles of EJB specification that are involved in the development and deployment of EJB application, i.e. Enterprise bean provider, Application assembler, deployer, system administrator, EJB server provider and EJB container provider.................

EJB advantages limitations interview questions

What are the advantages of EJB model? What are the limitations of EJB models?................

EJB session beans interview questions

What are the session beans? Explain the types of session beans. What are the steps involved in developing a stateless session bean? ................

EJB Entity beans interview questions

What are Entity beans? Explain the need of entity beans. Explain the types of Entity beans. Explain their uses.................

EJB 2.0 Entity Model interview questions

Explain the advantages of EJB 2.0 container-managed persistence over bean-managed persistence. Explain the types and role of abstract methods in EJB 2.0 persistence.................

EJB Asynchronous communication interview questions

What is a message-driven bean? Explain the need for asynchronous communication. What is the JMS messaging?................

EJB environment interview questions

What is the Enterprise Bean Environment? Explain the EJB environment Entries.................

EJB Resource Manager interview questions

What is a Resource Manager Connection factory? Explain the five types of resource manager that J2EE compliant application server must support... ................

EJB security interview questions

Explain the advantages of EJB 2.0 container-managed persistence over bean-managed persistence. Explain the types and role of abstract methods in EJB 2.0 persistence.................

EJB design interview questions

Briefly describe the EJB security model. What are the EJB-specific issues in security management? I.e. Authentication, Authorization and Secure communication.................

EJB performances interview questions

What are the advantages of implementing a distributed system using EJB?.......................

EJB containers interview questions

Explain how to avoid large data transfer using EJBs. What is lazy loading? Explain how to lazy-load enterprise beans.................

 
Java Transaction API – JTA interview questions

What is JTA? What is bean managed transaction?................

Java transaction services, JTS interview questions

What is JTS? What is a distributed transaction? ................

Java GUI Framework interview questions

Explain the following java graphical interface framework. List out components by AWT? Explain each in brief.................

SWT/JFace interview questions

Explain SWT and JFace. Explain the components offered by JFace.................

MVC and Jface interview questions

Explain the model-view-controller pattern. Explain the 3 main components of MVC architecture, i.e. Model, view and controller.................

SWT Event handling interview questions

Explain how SWT’s event handling is different from that of Swing.................

SWT Layouts interview questions

What are SWT Layouts? Explain the four standard layouts and one custom layouts provided in SWT.................

Explain the methods for accessing system properties about the Java virtual machine.

The system properties are accessed by the method System.getProperties(). This method returns a Properties object. By using the list() method of Properties, all the system properties can be viewed...............

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Java Authentication and Authorization Service, JAAS

What is Java Authentication and Authorization Service, JAAS?
Features of JAAS.
JAAS infrastructure has two services: authentication and authorization. Explain the two services.
JAAS authentication from your application typically involves the steps. Explain the steps...........



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  1. What is J2EE?
  2. Explain in brief J2EE module.
  3. Explain J2EE component.
  4. List out differences between Session Bean and Entity Bean.
  5. Explain why J2EE is suitable for the development of distributed multi-tiered enterprise applications.
  6. What is a container in J2EE.
  7. What are the services provided by a container?
  8. What is Applet container?
  9. What is Enterprise JavaBeans (EJB) container?
  10. What are types of J2EE clients?
  11. What do Enterprise JavaBeans components contain?
  12. What is the web container?
  13. Explain how do we package J2EE components.
  14. What are types of J2EE clients?
  15. Define an abstract schema.
  16. Define deployment descriptor in J2EE.
  17. Define EAR file.
  18. What is "activation"?
  19. Define an applet.
  20. What is Struts?
  21. What is JTA and JTS?
  22. What is JAXP?
  23. Explain what an application assembler is.
  24. Define an application configuration resource file.
  25. Explain the term authorization.
  26. What is backing bean?
  27. What is bean-managed persistence?
  28. What is bean-managed transaction?
  29. What is JAAP?
  30. Explain in brief Java Naming and Directory Service.
  31. Explain the term container.
  32. What is EJB container?
  33. What is enterprise bean?
  34. What is Enterprise JavaBeans (EJB)?
  35. What is Enterprise JavaBeans Query Language (EJB QL)?
Click here to share knowledge by answering these questions



 
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