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EJB Interview Questions
Questions Answers Views Company eMail

Which of the recommended practices to be performed in the ejbpassivate() method of a stateful session bean?

 1112

An instance of stateful session ejb when accessed simultaneously from more than one clients on same vm results in remoteexception or ejbexception. In case the client is a servlet thread, which of the techniques can be used to avoid remoteexception/ejbexception?

 985

A client wants to preserve the reference to the ejbhome object of an enterprise bean instance and use it later. Which of the following can be serialized for this purpose?

 999

How do I use a less than or greater than on a message selector in ejb-jar.xml?

 969

Match the ejb functions given below with the functionality equivalent in sql?

 978

For ejb applications with bean-managed transaction demarcations, which of the following is used by the client to get a reference to the usertransaction object for the weblogic server domain?

 1000

Which is the only method defined in the javax.ejb.handle interface?

 1092

How does ejb invocation happens?

 997

What is the procedure for the creation of stateless ejb?

 972

What are the advantages of java beam?

 1089

Explain the important elements of ejb?

 973

Explain the concept of connection pooling feature of ejb container?

 969

What are the various types of entity beam?

 1025

What are the callback annotations for the stateless bean?

 959

What do you understand by session facade?

 998

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Un-Answered Questions { EJB }

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?

1005

What is stateless session?

1017

What are the advantages of java beam?

1089

What is ejb and why it is used?

1045

What is the new basic requirement for a cmp entity bean class in 2.0 from that of ejb 1.1?

993

Should services be stateless?

928

What is the default transaction attribute for an ejb?

971

What is bean-managed persistence?

1065

How many ejb objects are created for a bean?

980

Match the ejb functions given below with the functionality equivalent in sql?

978

Why do we use ejb?

999

Write the basic requirement of a cmp entity based class in 2.0 from ejb 1.1?

1020

What is Session Bean Interface?

972

Are entity beans allowed to create() methods?

1055

What causes statelessness?

912

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