- Exam Code: 310-083
- Exam Name: Sun Certified Web Component Developer for J2EE 5
- Updated: Oct 06, 2026
- Q & A: 276 Questions and Answers
SUN 310-083 actual dump : Sun Certified Web Component Developer for J2EE 5
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SUN 310-083 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Deployment Descriptor and Configuration | - Context initialization parameters - Servlet and filter mapping - web.xml configuration |
| Topic 2: Web Application Design and Architecture | - Security considerations - MVC design pattern - Request dispatching |
| Topic 3: JavaServer Pages (JSP) | - JSP standard actions - JSP lifecycle - Custom tags and tag libraries - Expression Language (EL) |
| Topic 4: Servlet Technology | - Request and response handling - Servlet lifecycle and API - Filters and listeners - Session management |
| Topic 5: JavaServer Pages Standard Tag Library (JSTL) | - Core tags - Formatting and functions libraries |
SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:
Question #1
Given:
1 1. <% java.util.Map map = new java.util.HashMap();
1 2. request.setAttribute("map", map);
13. map.put("a", "true");
14. map.put("b", "false");
15. map.put("c", "42"); %>
Which three EL expressions are valid and evaluate to true? (Choose three.)
- A. ${map.a and map.b or map.a}
- B. ${map.d or map.a}
- C. ${not map.c}
- D. ${map['true'] or map['false']}
- E. ${map.a and map.d}
- F. ${map.false or map.true}
Correct Answer: A,B,C 🗳️
Question #2
Which two are true about the JSTL core iteration custom tags? (Choose two.)
- A. When looping over integers (for example begin='1' end='10'), a loop status object may not be used in the tag body.
- B. It may iterate over arrays, collections, maps, and strings.
- C. The body of the tag may contain EL code, but not scripting code.
- D. It may iterate over a map, but only the key of the mapping may be used in the tag body.
- E. When looping over collections, a loop status object may be used in the tag body.
Correct Answer: B,E 🗳️
Question #3
You have been contracted to create a web site for a free dating service. One feature is the ability for one client to send a message to another client, which is displayed in the latter client's private page. Your contract explicitly states that security is a high priority.
Therefore, you need to prevent cross-site hacking in which one user inserts JavaScript code that is then rendered and invoked when another user views that content. Which two
JSTL code snippets will prevent cross-site hacking in the scenario above? (Choose two.)
- A. <c:out value='${message}' escapeXml='true' />
- B. <c:out value='${message}' />
- C. <c:out eliminateXml='true'>${message}</c:out>
- D. <c:out value='${message}' eliminateXml='true' />
- E. <c:out>${message}</c:out>
Correct Answer: A,B 🗳️
Question #4
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 must provide an alternate mechanism for managing sessions and abandon the HttpSession mechanism entirely.
- 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 can ignore this issue. Web containers are required to support automatic
URL rewriting when cookies are not supported.
Correct Answer: B 🗳️
Question #5
You are creating a new JSP page and you need to execute some code that acts when the page is first executed, but only once. Which three are possible mechanisms for performing this initialization code? (Choose three.)
- A. In the constructor of the JSP's Java code.
- B. In the init method.
- C. In the jspInit method.
- D. In a JSP declaration, which includes a static initializer block.
- E. In a JSP declaration, which includes an initializer block.
Correct Answer: C,D,E 🗳️
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