EJB Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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?

1050

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?

931

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?

939

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

910

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

907

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?

936

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

1035

How does ejb invocation happens?

928

What is the procedure for the creation of stateless ejb?

923

What are the advantages of java beam?

990

Explain the important elements of ejb?

921

Explain the concept of connection pooling feature of ejb container?

911

What are the various types of entity beam?

966

What are the callback annotations for the stateless bean?

899

What do you understand by session facade?

942

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Un-Answered Questions { EJB }

What are the differences between ejb 3.0 and ejb 2.0?

933

What are the different types of ejb?

913

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?

939

What is the difference between message driven beans and stateless session beans?

935

Are entity beans allowed to create() methods?

1001

What is the procedure of ejb container to handle exceptions?

925

List some key actors in persistence api.

1019

What is activemq used for?

902

Can you be deported if you are stateless?

837

What is ejb context?

937

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

937

Why do we use @requestmapping?

930

How to generate ejb stubs in eclipse?

1204

can anyone explain me the workflow of EJB.I have developed an app. in WSAD using an example that contains CMP and session bean.But i am not able to understand the basic flow between diffrent packages.

2306

What is applicationscoped?

916

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