Oracle 1Z0-858 exam : Java Enterprise Edition 5 Web Component Developer Certified Professional Exam

1Z0-858 Exam Simulator
  • Exam Code: 1Z0-858
  • Exam Name: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
  • Updated: Aug 28, 2026
  • Q & A: 276 Questions and Answers

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Oracle 1Z0-858 Exam Syllabus Topics:

SectionObjectives
Deployment and Configuration- Web application packaging
  • 1. WAR file structure
    • 2. Deployment descriptors (web.xml)
      Expression Language (EL)- EL syntax and usage
      • 1. Accessing scoped variables
        • 2. Operators and functions
          JavaServer Pages (JSP)- JSP fundamentals
          • 1. JSP implicit objects
            • 2. JSP lifecycle
              - JSP tag libraries
              • 1. Custom tags
                • 2. JSTL core tags
                  Web Application Architecture- Java EE Web tier overview
                  • 1. Servlet container architecture
                    • 2. Request/response lifecycle
                      Web Application Security- Secure communication
                      • 1. Session security considerations
                        • 2. HTTPS configuration
                          - Authentication and authorization
                          • 1. Declarative security in web.xml
                            • 2. Role-based access control
                              Servlet Technology- Session management
                              • 1. Cookies and URL rewriting
                                • 2. HttpSession usage
                                  - Filters and listeners
                                  • 1. Filter chaining and configuration
                                    • 2. Event listeners (context/session/request)
                                      - Servlet fundamentals
                                      • 1. Request and response objects
                                        • 2. Servlet lifecycle and methods

                                          Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

                                          Question 1

                                          Click the Exhibit button.
                                          Assume the tag library in the exhibit is placed in a web application in the path /WEBINF/tld/example.tld.
                                          1.2.
                                          <ex:hello />
                                          Which JSP code, inserted at line 1, completes the JSP code to invoke the hello tag?

                                          A. <%@ taglib prefix="ex" uri="/WEB-INF/tld" %>
                                          B. <%@ taglib prefix="ex" uri="http://example.com/tld/example" %>
                                          C. <%@ taglib prefix="ex" uri="http://localhost:8080/tld/example.tld" %>
                                          D. <%@ taglib uri="/WEB-INF/tld/example.tld" %>


                                          Question 2

                                          A developer for the company web site has been told that users may turn off cookie support in their browsers. What must the developer do to ensure that these customers can still use the web application?

                                          A. The developer can ignore this issue. Web containers are required to support automatic URL rewriting when cookies are not supported.
                                          B. The developer must ensure that every URL is properly encoded using the appropriate URL rewriting APIs.
                                          C. The developer must add the string ?id=<sessionid> to the end of every URL to ensure that the conversation with the browser can continue.
                                          D. The developer must provide an alternate mechanism for managing sessions and abandon the HttpSession mechanism entirely.


                                          Question 3

                                          Your web application uses a simple architecture in which servlets handle requests and then forward to a JSP using a request dispatcher. You need to pass information calculated by the servlet to the JSP; furthermore, that JSP uses a custom tag and must also process this information. This information must NOT be accessible to any other servlet, JSP or session in the webapp. How can you accomplish this goal?

                                          A. Store the data in a public instance variable in the servlet.
                                          B. Add an attribute to the request object before using the request dispatcher.
                                          C. Add an attribute to the context object before using the request dispatcher.
                                          D. This CANNOT be done as the tag handler has no means to extract this data.


                                          Question 4

                                          DRAG DROP
                                          Click the Task button.
                                          Place the servlet name onto every request URL, relative to the web application context root, that will invoke that servlet. Every request URL must be filled.


                                          Question 5

                                          Given this fragment from a Java EE deployment descriptor:
                                          124.
                                          <welcome-file>beta.html</welcome-file>
                                          125.
                                          <welcome-file>alpha.html</welcome-file>
                                          And this request from a browser:
                                          http://www.sun.com/SCWCDtestApp/register
                                          Which statement is correct, when the container receives this request?

                                          A. The container first looks for a servlet mapping in the deployment descriptor.
                                          B. The container first looks in the register directory for alpha.html.
                                          C. The container first looks in the register directory for beta.html.
                                          D. This deployment descriptor is NOT valid.


                                          Solutions:

                                          Question 1
                                          Answer: B
                                          Question 2
                                          Answer: B
                                          Question 3
                                          Answer: B
                                          Question 4
                                          Answer: Only visible for members
                                          Question 5
                                          Answer: A

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