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#1 2012-03-28 05:30:47

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Agent Vinod
From: India
Registered: 2012-03-23
Posts: 1,149

Java EJB Programming Interview Questions And Answers

Java Programing :: Java EJB Programming Job Interview Questions and Answers

Learn Java EJB Programming by EJB interview questions and answers

1 What is EJB?
2 What is session Facade in EJB?
3 What is EJB role in J2EE?
4 What is the difference between EJB and Java beans?
5 What are the key features of the EJB technology?
6 What are the key benefits of the EJB technology?
7 How many enterprise beans?
8 What is message-driven bean?
9 What is Entity Bean and Session Bean ?
10 How EJB Invocation happens?
11 Is it possible to share an HttpSession between a JSP and EJB? What happens when I change a value in the HttpSession from inside an EJB?
12 The EJB container implements the EJBHome and EJBObject classes. For every request from a unique client, does the container create a separate instance of the generated EJBHome and EJBObject classes?
13 Can the primary key in the entity bean be a Java primitive type such as int?
14 Can you control when passivation occurs?
15 What is the advantage of using Entity bean for database operations, over directly using JDBC API to do database operations? When would I use one over the other?
16 What is EJB QL?
17 Brief description about local interfaces?
18 What are the special design care that must be taken when you work with local interfaces?
19 What happens if remove( ) is never invoked on a session bean?
20 What is the difference between Message Driven Beans and Stateless Session beans?
21 How can I call one EJB from inside of another EJB?
22 What is an EJB Context?
23 Is is possible for an EJB client to marshal an object of class java.lang.Class to an EJB?
24 Is it legal to have static initializer blocks in EJB?
25 Is it possible to stop the execution of a method before completion in a SessionBean?
26 What is the default transaction attribute for an EJB?
27 What is the difference between session and entity beans? When should I use one or the other?

2012-03-28 05:30:47

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