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EJB Interview Questions and Answers

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EJB Interview Questions & Answers


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Questions Question: When should we use session bean/entity bean?I was unable to judge?For Example :For Airline Project where we can use EJB\'s? How can we differentiate the stateful and stateless session beans?
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Questions Question: What is return type of create method of an entity bean
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Questions Question: What is default state of session bean in a ejbjar.xml
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Questions Question: Can we deploy two ejbs with same JNDI name in separate ears
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Questions Question: What is a message Driven java bean? What is specific advantage of jsp on client side for web based development? Show Page [ 1 ] Go To Top Related Questions 1. What is a message Driven java bean?What is specific advantage of jsp on client side for web based development? 2. Which of the following offers an accurate description of Message-Driven Enterprise Beans?A Message-Driven beans are just a new way of describing a J Answer: B 3. What is Message Driven Bean Answered by Jey on 2005-05-08 12:30:37: Message Driven Bean (MDB) is an enterprise bean which runs inside the EJB container and it acts as Listener fo 4. What? s the biggest difference between Message-Driven Beans and Entity and Session Beans?A There is no difference in structure between Message- Choices B and D are correct. 5. what is message driven bean? what is advantageous? 6. Why an onMessage call in Message-driven bean is always a seperate transaction 7. What is the difference between Message producer and Message consumer Messaging systems provide a host of powerful advantages over other, more conventional distributed computing models. Primarily, they encourage "loose c 8. What is the primary advantage of XML driven Java Beans 9. What is the difference between ejbCreate() and ejbPostCreate() Answered by Jey on 2005-05-08 11:14:33: Session and Message Driven Bean will have only ejbCreate() method and no ejbPostCreate() method. Entity bean w 10. What is difference between StateFul and Stateless Session Bean? A Stateful Session Bean is a bean that is designed to service business processes that span multiple method requests or transactions. Stateful Session Related Articles 1. OS X Meets Java: by Steve Anglin 09/25/2002 Mac OS X has certainly created renewed interest in client-side Java, or J2SE, and its Java Foundation Classes (JFC), as well as extended client-side development packages and frameworks such as Java Media. There's even interest in Mac OS X as a possible server-side force, a 2. Client-Side Scripting and ASP: by Kannaiah Vadlakunta Introduction Most web applications involve both client-side and server-side script. Client-side script is often used to program the user interface for an application - for example, to change a web page's text dynamically, respond to user actions such as button clicks, and perf 3. Client-side and Server-side JavaScript: ( Page 1 of 6 ) This article explains the three major types of JavaScript, client-side, server-side and the core language. Server-side JavaScript is ideal for creating web applications that can be run on any platform, on any browser, and in any language. See the article for other advantages and disa 4. ASP.NET 2.0 Client-Side Features: Bring Server-Side Power to the Client: By Thiru Thangarathinam Go to page: 1 2 3 Next In addition to providing a number of new features on the server side, ASP.NET 2.0 also provides a number of improvements on the client side; these increase Web developers' productivity. These feature improvements include script callbacks, cross-page pos 5. Implement Client Scripts: Technology Toolbox: VB.NET, ASP.NET T he emphasis in ASP.NET lately has been on the creation of powerful server-side Web applications that work using any modern browser. But despite the ASP.NET server-side hoopla, client-side script inside a browser isn't going away. There are many good reasons to o 6. Disabling Validation for ASP.NET Server Controls: When using validation controls in your ASP.NET pages you might want to disable validation in certain situations. The most common example is when you want to disable validation for a Cancel button. You can instruct the ASP.NET server control to disable just the client-side validation, or both the cli 7. Model-Driven Development of .NET Enterprise Applications: Explores the role of domain-specific languages and Visual Studio 2005 Domain Specific Language Tools (DSLs) and show how they can be used to automate the generation of an enterprise application for the .NET platform. 8. Enterprise JavaBeans: Enterprise JavaBeans is a specification for creating server-side scalable, transactional, multi-user secure enterprise-level applications. It provides a consistent component architecture framework for creating distributed n-tier middleware. It would be fair to call a bean written to EJB spec a Serve 9. Enterprise JavaBeans by Gopalan Suresh Raj: Enterprise JavaBeans is a specification for creating server-side scalable, transactional, multi-user secure enterprise-level applications. It provides a consistent component architecture framework for creating distributed n-tier middleware. It would be fair to call a bean written to EJB spec a Serve 10. Secure Internet Programming with the Java 2 Platform, Standard Edition (J2SE) 1.4 Part II: The Client Side: Printable Page Articles Index Part II: The Client Side By Qusay H. Mahmoud December 2002 The Java Secure Socket Extension (JSSE), which is a set of Java packages that enable secure Internet communications, is a framework and implementation of the Secure Socket Layer (SSL) version 3.0 and the Transpo
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Questions Question: How EjbQL ara impemented when it is necessary?
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Questions Question: How to configure the jdbc driver in welogic server? What are all the necessary jar files to be used?
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Questions Question: How do J2EE application servers in general and the Weblogic servers in particular help software development?
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Questions Question: How to achieve clustering and connection pooling in ejb
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Questions Question: Where is JNDI located (In client or server). If its server, how a client can get the information about which EJB is registered in JNDI ?. How EJB will be registered in JNDI.
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Questions Question: What is ejbdoc? difference between connector,server,container?
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Questions Question: What is session synchronization in EJB
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Questions Question: What is the default transaction attribute in transactions
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Questions Question: What kind of bean(entity/session) will you use if there are no database transactions and all you use is a read-only database.
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Questions Question: What is the use of activate, passivate methods in EJB?
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Questions Question: What are the file used in hibernate?
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Questions Question: What is the difference synchronized block and normal block?
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Questions Question: Which deployment descriptor used in struts?
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Questions Question: What is parent class of Hashtable?
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Questions Question: How we deploy in weblogic?
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Latest 10 Answers
When there is any situation that u should attach a new patch to ur kernel , then download the patch and install it,to make changes to kernel , go to ok prompt and type boot -r, it will update or reconfigure the kernel
Honesty, helpful and reliable
procedure is a set of sql statement ,are combined to gether to perform a specific task or to solve a specifi problem.it does not return value.
leadership is power to influence a group so that the members willingly exert efforts as aspired by the leader.
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first execute the bc search spec to fetch the data then executes the applet search spec if applet search spec is not match with bc it skips
TCP-Transmission Control Protocol. TCP is Reliable. TCP is Connection oriented. UDP-User Datagram Protoco UDP is Unreliable. UDP is Connectionless.
By default in structure all data member and member function are public,i,e if you not mentation any access specifier. But in case of class By default all data member and member function are private.
Structure is a user defined data type. By default all structure variables are public type and we cann't use access specifier in structure type variable, where as in class we can define objects(variables) under required access specifier type.
variable cost is the cost which is not fixed in nature

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