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Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional : 1Z0-858
- Exam Code: 1Z0-858
- Exam Name: Java Enterprise Edition 5 Web Component Developer Certified Professional Exam
- Updated: Oct 06, 2026
- Q & A: 276 Questions and Answers
About Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional : 1Z0-858 Exam
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Oracle 1Z0-858 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Servlet Technology Model | 15% | - Request and response handling - Servlet lifecycle - Servlet configuration and initialization |
| Topic 2: Design Patterns and Architecture | 8% | - Service Locator, Business Delegate - MVC pattern - Intercepting Filter, Front Controller |
| Topic 3: Web Container Model | 10% | - Event listeners - Container services - Filters and interceptors |
| Topic 4: Session Management | 10% | - Session attributes and scope - Session tracking mechanisms - Session lifecycle |
| Topic 5: Expression Language (EL) and Standard Actions | 10% | - EL syntax and operators - Accessing JavaBeans and collections - Standard JSP actions |
| Topic 6: JSP Technology Model | 13% | - Elements and syntax - Implicit objects - JSP lifecycle |
| Topic 7: Web Application Security | 12% | - Data protection and transport security - Authentication methods - Authorization and roles |
| Topic 8: Web Application Structure and Deployment | 10% | - Deployment descriptor (web.xml) - Annotations for configuration - WAR file structure |
| Topic 9: JSTL and Custom Tag Development | 12% | - Tag files and descriptors - JSTL core and formatting tags - Tag handler lifecycle |
Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:
Question #1
A developer chooses to avoid using SingleThreadModel but wants to ensure that data is updated in a thread-safe manner. Which two can support this design goal? (Choose two.)
- A. Store the data in the ServletContext object.
- B. Store the data in a local variable.
- C. Store the data in the ServletRequest object.
- D. Store the data in an instance variable.
- E. Store the data in the HttpSession object.
Correct Answer: B,C 🗳️
Question #2
Your company has a corporate policy that prohibits storing a customer's credit card number in any corporate database. However, users have complained that they do NOT want to reenter their credit card number for each transaction. Your management has decided to use client-side cookies to record the user's credit card number for 120 days. Furthermore, they also want to protect this information during transit from the web browser to the web container; so the cookie must only be transmitted over HTTPS. Which code snippet creates the "creditCard" cookie and adds it to the out going response to be stored on the user's web browser?
- A. 10. Cookie c = new Cookie("creditCard", usersCard);
11.
c.setHttps(true);
12.
c.setMaxAge(10368000);
13.
response.setCookie(c); - B. 10. Cookie c = new Cookie("creditCard", usersCard);
11.
c.setSecure(true);
12.
c.setAge(10368000);
13.
response.addCookie(c); - C. 10. Cookie c = new Cookie("creditCard", usersCard);
11.
c.setSecure(true);
12.
c.setAge(10368000);
13.
response.setCookie(c); - D. 10. Cookie c = new Cookie("creditCard", usersCard);
11.
c.setSecure(true);
12.
c.setMaxAge(10368000);
13.
response.addCookie(c); - E. 10. Cookie c = new Cookie("creditCard", usersCard);
11.
c.setHttps(true);
12.
c.setAge(10368000);
13.
response.addCookie(c);
Correct Answer: D 🗳️
Question #3
Given: http://com.example/myServlet.jsp?num=one&num=two&num=three Which two produce the output "one, two and three"? (Choose two.)
- A. ${parameterValues["num"]["0"]}, ${parameterValues["num"]["1"]} and ${parameterValues["num"]["2"]}
- B. ${param.num[0],[1] and [2]}
- C. ${paramValues.num[0]}, ${paramValues.num[1]} and ${paramValues.num[2]}
- D. ${param.num[0]}, ${param.num[1]} and ${param.num[2]}
- E. ${paramValues[0],[1] and [2]}
- F. ${parameterValues.num[0]}, ${parameterValues.num[1]} and ${parameterValues.num[2]}
- G. ${paramValues["num"][0]}, ${paramValues["num"][1]} and ${paramValues["num"][2]}
Correct Answer: C,G 🗳️
Question #4
A web application uses the HttpSession mechanism to determine if a user is "logged in." When a user supplies a valid user name and password, an HttpSession is created for that user.
The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in, and if this time is greater than 15 minutes, must destroy the HttpSession.
Which method in HttpSession is used to accomplish this?
- A. getLastAccessedTime
- B. getMaxInactiveInterval
- C. invalidateAfter
- D. getCreationTime
Correct Answer: D 🗳️
Question #5
You need to create a servlet filter that stores all request headers to a database for all requests to the web application's home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of the request headers?
- A. java.util.Iterator getRequestHeaders()
- B. java.util.Iterator getHeaderNames()
- C. java.util.Enumeration getRequestHeaders()
- D. java.util.Enumeration getHeaderNames()
- E. String[] getRequestHeaders()
- F. String[] getHeaderNames()
Correct Answer: D 🗳️
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