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

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

1. Assume that a news tag library contains the tags lookup and item:
lookup Retrieves the latest news headlines and executes the tag body once for each headline. Exposes a NESTED page-scoped attribute called headline of type com.example.Headline containing details for that headline.
item Outputs the HTML for a single news headline. Accepts an attribute info of type com.example.Headline containing details for the headline to be rendered.Which snippet of JSP code returns the latest news headlines in an HTML table, one per row?

A) <table>
< news:lookup>
< tr>
< td><news:item info="${headline}" /></td>
< /tr>
< /news:lookup>
< /table>
B) <news:lookup />
< table>
< tr>
< td><news:item info="${headline}" /></td>
< /tr>
< /table>
C) <table>
< tr>
< td>
< news:lookup />
< news:item info="${headline}" />
< /td>
< /tr>
< /table>
D) <table>
< tr>
< news:lookup>
< td><news:item info="${headline}" /></td>
< /news:lookup>
< /tr>
< /table>

2. A developer has used this code within a servlet:
62. if(request.isUserInRole("vip")) {
63. // VIP-related logic here
64. }
What else must the developer do to ensure that the intended security goal is achieved?

A) create a user called vip in the security realm
B) define a group within the security realm and call it vip
C) declare a security-role-ref for vip in the deployment descriptor
D) define a security-role named vip in the deployment descriptor

3. Click the Exhibit button.
Given:
1 1. <% com.example.Advisor advisor = new com.example.Advisor(); %>
1 2. <% request.setAttribute("foo", advisor); %>
Assuming there are no other "foo" attributes in the web application, which three are valid
EL expressions for retrieving the advice property of advisor? (Choose three.)

A) ${requestScope[foo[advice]]}
B) ${requestScope["foo"["advice"]]}
C) ${requestScope.foo.advice}
D) ${foo.advice}
E) ${requestScope["foo"]["advice"]}
F) ${request.foo.advice}

4. Given an HttpServletRequest request:
2 2. String id = request.getParameter("jsessionid");
2 3. // insert code here
2 4. String name = (String) session.getAttribute("name");
Which three can be placed at line 23 to retrieve an existing HttpSession object? (Choose three.)

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

5. Which two are required elements for the <web-resource-collection> element of a web application deployment descriptor? (Choose two.)

A) <description>
B) <realm-name>
C) <transport-guarantee>
D) <url-pattern>
E) <web-resource-name>

Solutions: