About - About-Oracle Certified Professional, Java EE Web Component Developer 1Z0-858

About-Oracle Certified Professional, Java EE Web Component Developer 1Z0-858

Oracle Certified Professional, Java EE Web Component Developer 1Z0-858

A Web component is a server-side object used by a Web-based client to interact with J2EE applications. Web components are divided into two types:

Java Servlet: A server-side Web component used to process requests and construct responses.

JavaServer Pages: Used to create dynamic Web content and server or platform-independent Web-based applications.

A Web browser interacts with a J2EE application and  Java Servlet and JavaServer Pages Web components.

However, Web component development and execution processes differ from typical stand-alone Java classes.

The Web container - Web components are executed and also provides services required for execution. If a Web component is executed by a Web container, the component must first be deployed in a Web container.

There are four basic steps involved in Web component development and execution:

1.Writing Web component code. A deployment descriptor also may be included in the code. Packaging the Web component, along with the resources referenced in the code such as images and videos.

2.Installing the Web component in the Web container.

3.Accessing the link that refers to the Web component.

The exam had 69 questions (both multiple choice and short answer) to be answered within two hours. The pass mark was 72 percent.

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