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Oracle Java Enterprise Edition 5 Web Component Developer Certified Professional Sample Questions:

1. The tl:taskList and tl:task tags output a set of tasks to the response and are used as follows:
11.
<tl:taskList>
12.
<tl:task name="Mow the lawn" />
13.
<tl:task name="Feed the dog" />
14.
<tl:task name="Do the laundry" />
15.
</tl:taskList>
The tl:task tag supplies information about a single task while the tl:taskList tag does the final output. The tag handler for tl:taskList is TaskListTag. The tag handler for tl:task is TaskTag. Both tag handlers extend BodyTagSupport.
Which allows the tl:taskList tag to get the task names from its nested tl:task children?

A) In the TaskListTag.doStartTag method, call super.getChildTags() and iterate through the results. Cast each result to a TaskTag and call getName().
B) Create an addTaskName method in TaskListTag. Have the TaskListTag.doStartTag method, return BodyTag.EVAL_BODY_BUFFERED. In the TaskTag.doStartTag method, call findAncestorWithClass() on the PageContext, passing TaskListTag as the class to find. Cast the result to TaskListTag and call addTaskName().
C) It is impossible for a tag handler that extends BodyTagSupport to communicate with its parent and child tags.
D) In the TaskListTag.doStartTag method, call getChildTags() on the PageContext and iterate through the results. Cast each result to a TaskTag and call getName().
E) Create an addTaskName method in TaskListTag. Have the TaskListTag.doStartTag method, return BodyTag.EVAL_BODY_BUFFERE In the TaskTag.doStartTag method, call super.getParent(), cast it to a TaskListTag, and call addTaskName().

2. You need to create a servlet filter that stores all request headers to a database for all requests to the web application's home page "/index.jsp". Which HttpServletRequest method allows you to retrieve all of the request headers?

A) java.util.Enumeration getHeaderNames()
B) String[] getHeaderNames()
C) String[] getRequestHeaders()
D) java.util.Iterator getRequestHeaders()
E) java.util.Iterator getHeaderNames()
F) java.util.Enumeration getRequestHeaders()

3. Given:
3.class MyServlet extends HttpServlet {
4.public void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
5.// servlet code here ...
26.
}
27.
}
If the DD contains a single security constraint associated with MyServlet and its only <httpmethod> tags and <auth-constraint> tags are:
<http-method>GET</http-method> <http-method>PUT</http-method> <auth-constraint>Admin</auth-constraint>
Which four requests would be allowed by the container? (Choose four.)

A) A user whose role is Member can perform a GET.
B) A user whose role is Member can perform a PUT.
C) A user whose role is Admin can perform a POST.
D) A user whose role is Admin can perform a GET.
E) A user whose role is Admin can perform a PUT.
F) A user whose role is Member can perform a POST.

4. 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>
<tr>
<td>
<news:lookup />
<news:item info="${headline}" />
</td>
</tr>
</table>
B) <news:lookup />
<table>
<tr>
<td><news:item info="${headline}" /></td>
</tr>
</table>
C) <table>
<tr>
<news:lookup>
<td><news:item info="${headline}" /></td>
</news:lookup>
</tr>
</table>
D) <table>
<news:lookup>
<tr>
<td><news:item info="${headline}" /></td>
</tr>
</news:lookup>
</table>

5. Which security mechanism uses the concept of a realm?

A) authentication
B) confidentiality
C) data integrity
D) authorization

Solutions: