SUN 310-083 Valid Test : Sun Certified Web Component Developer for J2EE 5

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SUN 310-083 Exam Syllabus Topics:

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

Question 1

Your web application views all have the same header, which includes the <title> tag in the
< head> element of the rendered HTML. You have decided to remove this redundant HTML code from your JSPs and put it into a single JSP called /WEB-INF/jsp/header.jsp.
However, the title of each page is unique, so you have decided to use a variable called pageTitle to parameterize this in the header JSP, like this:
10. <title>${param.pageTitle}<title>
Which JSP code snippet should you use in your main view JSPs to insert the header and pass the pageTitle variable?

A. <jsp:include file='/WEB-INF/jsp/header.jsp'>
$ {pageTitle='Welcome Page'}
< /jsp:include>
B. <jsp:insert page='/WEB-INF/jsp/header.jsp'>
$ {pageTitle='Welcome Page'}
< /jsp:insert>
C. <jsp:include page='/WEB-INF/jsp/header.jsp'>
$ {pageTitle='Welcome Page'}
< /jsp:include>
D. <jsp:include page='/WEB-INF/jsp/header.jsp'>
< jsp:param name='pageTitle' value='Welcome Page' />
< /jsp:include>
E. <jsp:insert page='/WEB-INF/jsp/header.jsp'>
< jsp:param name='pageTitle' value='Welcome Page' />
< /jsp:insert>

Question 2

As a convenience feature, your web pages include an Ajax request every five minutes to a special servlet that monitors the age of the user's session. The client-side JavaScript that handles the Ajax callback displays a message on the screen as the session ages. The Ajax call does NOT pass any cookies, but it passes the session ID in a request parameter called sessionID. In addition, assume that your webapp keeps a hashmap of session objects by the ID. Here is a partial implementation of this servlet:
10. public class SessionAgeServlet extends HttpServlet {
11. public void service(HttpServletRequest request, HttpServletResponse) throws
IOException {
1 2. String sessionID = request.getParameter("sessionID");
1 3. HttpSession session = getSession(sessionID);
1 4. long age = // your code here
1 5. response.getWriter().print(age);
16. } ... // more code here
47. }
Which code snippet on line 14, will determine the age of the session?

A. session.getLastAccessed().getTime() - session.getCreationTime().getTime();
B. session.getLastAccessedTime().getTime() - session.getCreationTime().getTime();
C. session.getMaxInactiveInterval() - session.getCreationTime();
D. session.getMaxInactiveInterval();
E. session.getLastAccessed() - session.getCreationTime();
F. session.getLastAccessedTime() - session.getCreationTime();

Question 3

DRAG DROP
Click the Task button.
Place the events in the order they occur.

Question 4

Assume the tag handler for a st:simple tag extends SimpleTagSupport. In what way can scriptlet code be used in the body of st:simple?

A. set the body content type to JSP in the TLD
B. add a pass-through Classic tag with a body content type of JSP to the body of st:simple, and place the scriptlet code in the body of that tag
C. add scripting-enabled="true" to the start tag for the st:simple element
D. Scriptlet code is NOT legal in the body of st:simple.

Question 5

Assume a JavaBean com.example.GradedTestBean exists and has two attributes. The attribute name is of type java.lang.String and the attribute score is of type java.lang.Integer.
An array of com.example.GradedTestBean objects is exposed to the page in a request- scoped attribute called results. Additionally, an empty java.util.HashMap called resultMap is placed in the page scope.
A JSP page needs to add the first entry in results to resultMap, storing the name attribute of the bean as the key and the score attribute of the bean as the value.
Which code snippet of JSTL code satisfies this requirement?

A. <c:set target="${resultMap}" property="${results[0].name}"
value="${results[0].score}" />
B. ${resultMap[results[0].name] = results[0].score}
C. <c:set var="resultMap" property="${results[0].name}">
$ {results[0].value}
< /c:set>
D. <c:set var="${resultMap}" key="${results[0].name}"
value="${results[0].score}" />
E. <c:set var="resultMap" property="${results[0].name}"
value="${results[0].score}" />

Solutions: