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SUN 310-083 Exam Syllabus Topics:

SUN Sun Certified Web Component Developer for J2EE 5 Sample Questions:

1. Click the Exhibit button.
Assuming the tag library in the exhibit is imported with the prefix stock, which custom tag invocation outputs the contents of the variable exposed by the quote tag?

A) <stock:quote symbol="SUNW" />
$ {var}
B) <stock:quote symbol="SUNW" var="quote">
< %= quote %>
< /stock:quote>
C) <stock:quote symbol="SUNW">
${var}
< /stock:quote>
D) ${var}
< stock:quote symbol="SUNW" />
E) <stock:quote symbol="SUNW" var="quote" />
$ {quote}

2. Which JSTL code snippet can be used to import content from another web resource?

A) <c:include page="foo.jsp"/>
B) <c:import page="foo.jsp"/>
C) Importing cannot be done in JSTL. A standard action must be used instead.
D) <c:include url="foo.jsp"/>
E) <c:import url="foo.jsp"/>

3. 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 jspInit method.
B) In a JSP declaration, which includes an initializer block.
C) In the init method.
D) In a JSP declaration, which includes a static initializer block.
E) In the constructor of the JSP's Java code.

4. 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.d}
B) ${map.a and map.b or map.a}
C) ${not map.c}
D) ${map['true'] or map['false']}
E) ${map.false or map.true}
F) ${map.d or map.a}

5. Given an HttpServletRequest request and an HttpServletResponse response:
4 1. HttpSession session = null;
4 2. // insert code here
4 3. if(session == null) {
4 4. // do something if session does not exist
4 5. } else {
4 6. // do something if session exists
4 7. }
To implement the design intent, which statement must be inserted at line 42?

A) session = response.getSession();
B) session = request.getSession();
C) session = request.getSession(true);
D) session = request.getSession(false);
E) session = request.getSession("jsessionid");

Solutions: