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SUN 310-083 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Deployment Descriptor and Configuration | - web.xml configuration - Context initialization parameters - Servlet and filter mapping |
| JavaServer Pages (JSP) | - Expression Language (EL) - JSP standard actions - Custom tags and tag libraries - JSP lifecycle |
| JavaServer Pages Standard Tag Library (JSTL) | - Formatting and functions libraries - Core tags |
| Servlet Technology | - Session management - Filters and listeners - Servlet lifecycle and API - Request and response handling |
| Web Application Design and Architecture | - Security considerations - Request dispatching - MVC design pattern |
SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:
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 re- enter 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);
1 1. c.setSecure(true);
1 2. c.setAge(10368000);
1 3. response.setCookie(c); - B. 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setHttps(true);
1 2. c.setAge(10368000);
1 3. response.addCookie(c); - C. 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setSecure(true);
1 2. c.setAge(10368000);
1 3. response.addCookie(c); - D. 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setHttps(true);
1 2. c.setMaxAge(10368000);
1 3. response.setCookie(c); - E. 10. Cookie c = new Cookie("creditCard", usersCard);
1 1. c.setSecure(true);
1 2. c.setMaxAge(10368000);
1 3. response.addCookie(c);
Correct Answer: E 🗳️
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 ServletRequest object.
- B. Store the data in the ServletContext object.
- C. Store the data in an instance variable.
- D. Store the data in a local variable.
- E. Store the data in the HttpSession object.
Correct Answer: A,D 🗳️
You need to store a Java long primitive attribute, called customerOID, into the session scope. Which two code snippets allow you to insert this value into the session? (Choose two.)
- A. long customerOID = 47L;
session.setLongAttribute("customerOID", customerOID); - B. long customerOID = 47L;
session.setNumericAttribute("customerOID", customerOID); - C. long customerOID = 47L;
session.setNumericAttribute("customerOID", new Long(customerOID)); - D. long customerOID = 47L;
session.setAttribute("customerOID", customerOID); - E. long customerOID = 47L;
session.setLongAttribute("customerOID", new Long(customerOID)); - F. long customerOID = 47L;
session.setAttribute("customerOID", new Long(customerOID));
Correct Answer: D,F 🗳️
You need to create a JavaBean object that is used only within the current JSP page. It must NOT be accessible to any other page including those that this page might import.
Which JSP standard action can accomplish this goal?
- A. <jsp:useBean name='pageBean' class='com.example.MyBean' />
- B. <jsp:useBean id='pageBean' class='com.example.MyBean' />
- C. <jsp:makeBean id='pageBean' class='com.example.MyBean' />
- D. <jsp:makeBean id='pageBean' type='com.example.MyBean' />
- E. <jsp:makeBean name='pageBean' class='com.example.MyBean' />
- F. <jsp:useBean id='pageBean' type='com.example.MyBean' />
Correct Answer: B 🗳️
You are creating a servlet that generates stock market graphs. You want to provide the web browser with precise information about the amount of data being sent in the response stream. Which two HttpServletResponse methods will you use to provide this information?
(Choose two.)
- A. response.setHeader("Length", numberOfBytes);
- B. response.setIntHeader("Length", numberOfBytes);
- C. response.setContentLength(numberOfBytes);
- D. response.setLength(numberOfBytes);
- E. response.setIntHeader("Content-Length", numberOfBytes);
- F. response.setHeader("Content-Length", numberOfBytes);
Correct Answer: C,E 🗳️
