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Oracle 1Z0-858 : Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
- Exam Code: 1Z0-858
- Exam Name: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
- Updated: Sep 08, 2026 Q&As: 276 Questions and Answers
About Oracle 1Z0-858 Exam
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Oracle 1Z0-858 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Session Management | 10% | - Session tracking mechanisms - Session attributes and scope - Session lifecycle |
| Design Patterns and Architecture | 8% | - Intercepting Filter, Front Controller - Service Locator, Business Delegate - MVC pattern |
| JSP Technology Model | 13% | - JSP lifecycle - Elements and syntax - Implicit objects |
| Expression Language (EL) and Standard Actions | 10% | - Accessing JavaBeans and collections - EL syntax and operators - Standard JSP actions |
| Web Application Security | 12% | - Authentication methods - Authorization and roles - Data protection and transport security |
| Web Container Model | 10% | - Container services - Event listeners - Filters and interceptors |
| Web Application Structure and Deployment | 10% | - Deployment descriptor (web.xml) - Annotations for configuration - WAR file structure |
| Servlet Technology Model | 15% | - Servlet lifecycle - Servlet configuration and initialization - Request and response handling |
| JSTL and Custom Tag Development | 12% | - Tag handler lifecycle - JSTL core and formatting tags - Tag files and descriptors |
Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:
Question #1
Given the two security constraints in a deployment descriptor:
101.
<security-constraint>
102.
<!--a correct url-pattern and http-method goes here-->
103.
<auth-constraint><role-name>SALES</role-name></auth-
103.
<auth-constraint>
104.
<role-name>SALES</role-name>
105.
</auth-constraint>
106.
</security-constraint>
107.
<security-constraint>
108.
<!--a correct url-pattern and http-method goes here-->
109.
<!-- Insert an auth-constraint here -->
110.
</security-constraint>
If the two security constraints have the same url-pattern and http-method, which two, inserted independently at line 109, will allow users with role names of either SALES or MARKETING to access this resource? (Choose two.)
- A. <auth-constraint> <role-name>*</role-name> </auth-constraint>
- B. <auth-constraint/>
- C. <auth-constraint> <role-name>MARKETING</role-name> </auth-constraint>
- D. <auth-constraint> <role-name>ANY</role-name> </auth-constraint>
Correct Answer: A,C 🗳️
Question #2
Given the security constraint in a DD:
101.
<security-constraint>
102.
<web-resource-collection>
103.
<web-resource-name>Foo</web-resource-name>
104.
<url-pattern>/Bar/Baz/*</url-pattern>
105.
<http-method>POST</http-method>
106.
</web-resource-collection>
107.
<auth-constraint>
108.
<role-name>DEVELOPER</role-name>
109.
</auth-constraint>
110.
</security-constraint>
And given that "MANAGER" is a valid role-name, which four are true for this security constraint? (Choose four.)
- A. DEVELOPER can do only a POST on resources in the /Bar/Baz directory.
- B. MANAGER can do a GET on resources in the /Bar/Baz directory.
- C. DEVELOPER can do a TRACE on any resource in the /Bar/Baz directory.
- D. MANAGER can do a TRACE on any resource in the /Bar/Baz directory.
- E. MANAGER can do a POST on any resource in the /Bar/Baz directory.
- F. DEVELOPER can do a GET on resources in the /Bar/Baz directory.
Correct Answer: B,C,D,F 🗳️
Question #3
A developer has created a special servlet that is responsible for generating XML content that is sent to a data warehousing subsystem. This subsystem uses HTTP to request these large data files, which are compressed by the servlet to save internal network bandwidth. The developer has received a request from management to create several more of these data warehousing servlets. The developer is about to copy and paste the compression code into each new servlet. Which design pattern can consolidate this compression code to be used by all of the data warehousing servlets?
- A. View Helper
- B. Transfer Object
- C. Facade
- D. Composite Facade
- E. Intercepting Filter
Correct Answer: E 🗳️
Question #4
Which two are true regarding a web application class loader? (Choose two.)
- A. Resources in the WAR class directory or in any of the JAR files within the library directory may be accessed using the J2SE semantics of getResource.
- B. A web application running in a J2EE product may override classes in the javax.* namespace.
- C. Resources in the WAR class directory or in any of the JAR files within the library directory CANNOT be accessed using the J2SE semantics of getResource.
- D. A web application class loader may NOT override any classes in the java.* and javax.* namespaces.
- E. A web application may override the web container's implementation classes.
Correct Answer: A,D 🗳️
Question #5
Which interface must a session attribute implement if it needs to be notified when a web container persists a session?
- A. javax.servlet.http.HttpSessionActivationListener
- B. javax.servlet.http.HttpSessionAttributeListener
- C. javax.servlet.http.HttpSessionListener
- D. javax.servlet.http.HttpSessionBindingListener
Correct Answer: A 🗳️
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