Java J2EE Interview Questions and Answers for Freshers - 2

Question: 6

What is ebXML?

Electronics Business XML. A group of specifications designed to enable enterprises to conduct business through exchange of XML based messages.

It is sponsored by OASIS and the United Nations Centre for the Facilitation of Procedure and Practices in Administration, Commerce and Transport.

Question: 7

What is EAR file?

Enterprise Archive File. A JAR archive that contains a J2EE application.

Question: 8

Is J2EE application only a web based?

No. It depends on type of application that client wants.

A J2EE application can be web based or non web based. If an application client executes on the client machine, it is a non web based J2EE application. The J2EE application can provide a way for users to handle tasks such as J2EE system or application administration. 

It typically has a graphical user interface created from Swing or AWT, or command line interface. When user request, it can open an HTTP connection to establish communication with a servlet running in the web tier.

Question: 9

What is life cycle (JavaServer Faces)?

A set of phases during which a request for a page is received, a UI component tree representing the page is processed, and a response is produced. During the phases of the life cycle:

The local data of the component is updated with the values contained in the request parameters.

Events generated by the components are processed.

Validators and converters registered on the component are processed.

The component’s local data is updated to back end objects.

The response is rendered to the clients while the component state of the response is saved on the server for future requests.

Question: 10

What is Universal Description, Discovery and Integration (UDDI) project?

An industry initiative to create a platform independent, open framework for describing services, discovering business, and integrating business services using the Internet, as well as a registry. It is being developed by a vendor consortium.