File Name: j2ee objective questions and answers .zip
In this Java Questions and Answers section you can learn and practice Java Questions and Answers to improve your skills in order to face technical inerview conducted by organisations. By Practicing these interview questions, you can easily crack any Exams interview.
There are lot of opportunities from many reputed companies in the world. According to research J2EE has a market share of about 7. Enthusiastic about exploring the skill set of J2EE?
J2EE is a platform independent and Java centric environment for developing, building and deploying Web-based enterprise applications online. Every programming language has their design patterns for various solutions they come across. One can check the availability of the job across cities including Mumbai, Delhi, Bangalore, Pune and Hyderabad. Wisdomjobs has interview questions which are exclusively designed for job seekers to assist them in clearing job interviews.
J2EE interview questions and answers are useful for developers to attend job interviews and get selected for Design Patterns job position. Answer : J2EE is an environment for developing and deploying enterprise applications.
The J2EE platform consists of a set of services, application programming interfaces APIs , and protocols that provide the functionality for developing multitiered, web-based applications. Question 2. What Is The J2ee Module? Answer : A J2EE module consists of one or more J2EE components for the same container type and one component deployment descriptor of that type. Question 3. Answer : A J2EE component is a self-contained functional software unit that is assembled into a J2EE application with its related classes and files and communicates with other components.
Question 4. Answer : 1. Application client module 2. Web module 3. Enterprise JavaBeans module 4. Resource adapter module. Question 5. Answer : The application client module contains: --class files, --an application client deployment descriptoor. Application client modules are packaged as JAR files with a. Question 6. What Does Web Module Contain? Web modules are packaged as JAR files with a.
Question 7. Answer : There are no structural differences between the files; they are all archived using zip-jar compression.
However, they are intended for different purposes. In this context, a Web application is defined as a single group of files, classes, resources,. In this context, an enterprise application is defined as a collection of. Each type of file. Question 8. Session Bean --represents a workflow on behalf of a client. Answer : A J2EE component that typically executes in a Web browser but can execute in a variety of other applications or devices that support the applet programming model.
Question What Is "applet Container"? Answer : A container that includes support for the applet programming model. What Is Authorization? Answer : The process by which access to a method or resource is determined.
Authorization depends on the determination of whether the principal associated with a request through authentication is in a given security role.
A security role is a logical grouping of users defined by the person who assembles the application. A deployer maps security roles to security identities. Security identities may be principals or groups in the operational environment.
What Is Authorization Constraint? Answer : An authorization rule that determines who is permitted to access a Web resource collection. What Is Backing Bean? The backing bean defines properties for the components on the page and methods that perform processing for the component.
This processing includes event handling, validation, and processing associated with navigation. What Is Basic Authentication? Answer : An authentication mechanism in which a Web server authenticates an entity via a user name and password obtained using the Web application's built-in authentication mechanism. What Is Bean-managed Persistence?
Answer : The mechanism whereby data transfer between an entity bean's variables and a resource manager is managed by the entity bean. What Is Bean-managed Transaction?
Answer : A transaction whose boundaries are defined by an enterprise bean. What Is Binding xml? Answer : Generating the code needed to process a well-defined portion of XML data. What Is Binding javaserver Faces Technology.
Answer : Wiring UI components to back-end data sources such as backing bean properties. What Is Build File? Answer : The XML file that contains one or more asant targets.
A target is a set of tasks you want to be executed. When starting asant, you can select which targets you want to have executed. When no target is given, the project's default target is executed. What Is Business Logic? Answer : The code that implements the functionality of an application.
In the Enterprise JavaBeans architecture, this logic is implemented by the methods of an enterprise bean. What Is Business Method? Answer : A method of an enterprise bean that implements the business logic or rules of an application.
What Is Callback Methods? Answer : Component methods called by the container to notify the component of important events in its life cycle. What Is Caller Principal? Answer : The principal that identifies the invoker of the enterprise bean method.
What Is Cascade Delete? Answer : A deletion that triggers another deletion. A cascade delete can be specified for an entity bean that has container-managed persistence. What Is Certificate Authority? Answer : A trusted organization that issues public key certificates and provides identification to the bearer. What Is Client-certificate Authentication?
Answer : An authentication mechanism that uses HTTP over SSL, in which the server and, optionally, the client authenticate each other with a public key certificate that conforms to a standard that is defined by X. Answer : In an XML document, text that is ignored unless the parser is specifically told to recognize it. Answer : The point in a transaction when all updates to any resources involved in the transaction are made permanent.
What Is Component Contract? Answer : The contract between a J2EE component and its container. The contract includes life-cycle management of the component, a context interface that the instance uses to obtain various information and services from its container, and a list of services that every container must provide for its components.
What Is Component-managed Sign-on? Answer : A mechanism whereby security information needed for signing on to a resource is provided by an application component. What Is Connector? Answer : A standard extension mechanism for containers that provides connectivity to enterprise information systems. A connector is specific to an enterprise information system and consists of a resource adapter and application development tools for enterprise information system connectivity.
The resource adapter is plugged in to a container through its support for system-level contracts defined in the Connector architecture. What Is Connector Architecture? Answer : An architecture for integration of J2EE products with enterprise information systems. There are two parts to this architecture: a resource adapter provided by an enterprise information system vendor and the J2EE product that allows this resource adapter to plug in.
This architecture defines a set of contracts that a resource adapter must support to plug in to a J2EE product-for example, transactions, security, and resource management. What Is Container?
Answer : An entity that provides life-cycle management, security, deployment, and runtime services to J2EE components. What Is Container-managed Persistence?
Answer : The mechanism whereby data transfer between an entity bean's variables and a resource manager is managed by the entity bean's container. What Is Container-managed Sign-on? Answer : The mechanism whereby security information needed for signing on to a resource is supplied by the container.
Good questions but preparing just 15 20 questions won't be enough. See this mega list of Java interview questions for through preparation. When you say technical interview questions, what does that mean? I am assuming for Programming Job interviews most of the rounds are technical round be it written test, phone interview or face-to-face interview, only exception is HR interview which happens last. Let me know if you have different meaning for technical interview here. I would highly request to please answer question first instead of providing link links Very good list but can you also add some questions on Java 8, Stream, Lambda expression and new Java features like Record, String in Switch, var and much more, this will be more aligned to what people are asked in recent Java interviews.
J2EE is a platform independent and Java centric environment for developing, building and deploying Web-based enterprise applications online. Every programming language has their design patterns for various solutions they come across. One can check the availability of the job across cities including Mumbai, Delhi, Bangalore, Pune and Hyderabad. Wisdomjobs has interview questions which are exclusively designed for job seekers to assist them in clearing job interviews. J2EE interview questions and answers are useful for developers to attend job interviews and get selected for Design Patterns job position. Answer : J2EE is an environment for developing and deploying enterprise applications. The J2EE platform consists of a set of services, application programming interfaces APIs , and protocols that provide the functionality for developing multitiered, web-based applications.
Java2enterprises edition(j2ee) multiple choice questions and answers for all competitive exams, SSC, IBPS, LIC, UPSC, Bank Exams, entrance exams, medical.
In this Servlets Questions and Answers section you can learn and practice Servlets Questions and Answers to improve your skills in order to face technical interview conducted by organizations. By Practicing these interview questions, you can easily crack any Exams interview. Fully solved examples with detailed answer description. You no need to worry, we have given lots of Servlets Questions and Answers and also we have provided lots of FAQ's to quickly answer the questions in the Competitive Exams interview. Why Servlets Questions and Answers Required?
These are the most asked interview questions for freshers years experienced. This question list will help you to crack java interview. I have already shared detailed answer over here before, you might find it helpful as well. I would like to apologize for putting so many links in this article but it is better to understand answer in good depth,so I have put links to details answers over here. No, you cannot override static method in java.